Home / 71,713.36-98,956.86-39,877.12

Finding the Fourth Proportional to 71,713.36, 98,956.86 and 39,877.12

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Solution

The fourth proportional to 71,713.36, 98,956.86 and 39,877.12 is: 55,026.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,713.36 : 98,956.86 = 39,877.12 : x
  2. Step 2: Convert to fraction form
    71,713.36/98,956.86 = 39,877.12/x
  3. Step 3: Cross multiply
    71,713.36x = 98,956.86 × 39,877.12
  4. Step 4: Simplify right side
    71,713.36x = 3,946,114,581.04
  5. Step 5: Solve for x
    x = 3,946,114,581.04/71,713.36
  6. Step 6: Final answer
    x = 55,026.21

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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.