Home / 70,385.38-97,134.33-38,555.62

Finding the Fourth Proportional to 70,385.38, 97,134.33 and 38,555.62

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Solution

The fourth proportional to 70,385.38, 97,134.33 and 38,555.62 is: 53,208.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,385.38 : 97,134.33 = 38,555.62 : x
  2. Step 2: Convert to fraction form
    70,385.38/97,134.33 = 38,555.62/x
  3. Step 3: Cross multiply
    70,385.38x = 97,134.33 × 38,555.62
  4. Step 4: Simplify right side
    70,385.38x = 3,745,074,316.43
  5. Step 5: Solve for x
    x = 3,745,074,316.43/70,385.38
  6. Step 6: Final answer
    x = 53,208.13

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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.