Home / 90,818.01-125,281.89-53,070.39

Finding the Fourth Proportional to 90,818.01, 125,281.89 and 53,070.39

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Solution

The fourth proportional to 90,818.01, 125,281.89 and 53,070.39 is: 73,209.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,818.01 : 125,281.89 = 53,070.39 : x
  2. Step 2: Convert to fraction form
    90,818.01/125,281.89 = 53,070.39/x
  3. Step 3: Cross multiply
    90,818.01x = 125,281.89 × 53,070.39
  4. Step 4: Simplify right side
    90,818.01x = 6,648,758,762.24
  5. Step 5: Solve for x
    x = 6,648,758,762.24/90,818.01
  6. Step 6: Final answer
    x = 73,209.69

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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.