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Finding the Fourth Proportional to 86,101.93, 129,030.24 and 63,434.35

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Solution

The fourth proportional to 86,101.93, 129,030.24 and 63,434.35 is: 95,061.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,101.93 : 129,030.24 = 63,434.35 : x
  2. Step 2: Convert to fraction form
    86,101.93/129,030.24 = 63,434.35/x
  3. Step 3: Cross multiply
    86,101.93x = 129,030.24 × 63,434.35
  4. Step 4: Simplify right side
    86,101.93x = 8,184,948,990.43
  5. Step 5: Solve for x
    x = 8,184,948,990.43/86,101.93
  6. Step 6: Final answer
    x = 95,061.16

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.