Home / 70,385.26-97,131.68-38,555.30

Finding the Fourth Proportional to 70,385.26, 97,131.68 and 38,555.30

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Solution

The fourth proportional to 70,385.26, 97,131.68 and 38,555.30 is: 53,206.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,385.26 : 97,131.68 = 38,555.30 : x
  2. Step 2: Convert to fraction form
    70,385.26/97,131.68 = 38,555.30/x
  3. Step 3: Cross multiply
    70,385.26x = 97,131.68 × 38,555.30
  4. Step 4: Simplify right side
    70,385.26x = 3,744,940,869.13
  5. Step 5: Solve for x
    x = 3,744,940,869.13/70,385.26
  6. Step 6: Final answer
    x = 53,206.33

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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.