Home / 90,739.85-125,202.65-53,006.81

Finding the Fourth Proportional to 90,739.85, 125,202.65 and 53,006.81

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Solution

The fourth proportional to 90,739.85, 125,202.65 and 53,006.81 is: 73,138.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,739.85 : 125,202.65 = 53,006.81 : x
  2. Step 2: Convert to fraction form
    90,739.85/125,202.65 = 53,006.81/x
  3. Step 3: Cross multiply
    90,739.85x = 125,202.65 × 53,006.81
  4. Step 4: Simplify right side
    90,739.85x = 6,636,592,189.00
  5. Step 5: Solve for x
    x = 6,636,592,189.00/90,739.85
  6. Step 6: Final answer
    x = 73,138.68

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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.