Home / 73,115.13-100,899.15-39,581.13

Finding the Fourth Proportional to 73,115.13, 100,899.15 and 39,581.13

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Solution

The fourth proportional to 73,115.13, 100,899.15 and 39,581.13 is: 54,622.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,115.13 : 100,899.15 = 39,581.13 : x
  2. Step 2: Convert to fraction form
    73,115.13/100,899.15 = 39,581.13/x
  3. Step 3: Cross multiply
    73,115.13x = 100,899.15 × 39,581.13
  4. Step 4: Simplify right side
    73,115.13x = 3,993,702,373.04
  5. Step 5: Solve for x
    x = 3,993,702,373.04/73,115.13
  6. Step 6: Final answer
    x = 54,622.11

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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.