Home / 90,762,743.12-125,211,400.44-53,567,789.36

Finding the Fourth Proportional to 90,762,743.12, 125,211,400.44 and 53,567,789.36

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Solution

The fourth proportional to 90,762,743.12, 125,211,400.44 and 53,567,789.36 is: 73,899,242.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,762,743.12 : 125,211,400.44 = 53,567,789.36 : x
  2. Step 2: Convert to fraction form
    90,762,743.12/125,211,400.44 = 53,567,789.36/x
  3. Step 3: Cross multiply
    90,762,743.12x = 125,211,400.44 × 53,567,789.36
  4. Step 4: Simplify right side
    90,762,743.12x = 6,707,297,924,240,531
  5. Step 5: Solve for x
    x = 6,707,297,924,240,531/90,762,743.12
  6. Step 6: Final answer
    x = 73,899,242.06

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.