Home / 70,320.90-97,042.68-38,489.52

Finding the Fourth Proportional to 70,320.90, 97,042.68 and 38,489.52

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Solution

The fourth proportional to 70,320.90, 97,042.68 and 38,489.52 is: 53,115.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,320.90 : 97,042.68 = 38,489.52 : x
  2. Step 2: Convert to fraction form
    70,320.90/97,042.68 = 38,489.52/x
  3. Step 3: Cross multiply
    70,320.90x = 97,042.68 × 38,489.52
  4. Step 4: Simplify right side
    70,320.90x = 3,735,126,172.71
  5. Step 5: Solve for x
    x = 3,735,126,172.71/70,320.90
  6. Step 6: Final answer
    x = 53,115.45

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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.