Home / 70,115.49-96,767.91-39,908.16

Finding the Fourth Proportional to 70,115.49, 96,767.91 and 39,908.16

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Solution

The fourth proportional to 70,115.49, 96,767.91 and 39,908.16 is: 55,078.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,115.49 : 96,767.91 = 39,908.16 : x
  2. Step 2: Convert to fraction form
    70,115.49/96,767.91 = 39,908.16/x
  3. Step 3: Cross multiply
    70,115.49x = 96,767.91 × 39,908.16
  4. Step 4: Simplify right side
    70,115.49x = 3,861,829,235.15
  5. Step 5: Solve for x
    x = 3,861,829,235.15/70,115.49
  6. Step 6: Final answer
    x = 55,078.12

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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.