Home / 86,017.27-129,041.04-39,274.87

Finding the Fourth Proportional to 86,017.27, 129,041.04 and 39,274.87

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Solution

The fourth proportional to 86,017.27, 129,041.04 and 39,274.87 is: 58,919.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,017.27 : 129,041.04 = 39,274.87 : x
  2. Step 2: Convert to fraction form
    86,017.27/129,041.04 = 39,274.87/x
  3. Step 3: Cross multiply
    86,017.27x = 129,041.04 × 39,274.87
  4. Step 4: Simplify right side
    86,017.27x = 5,068,069,874.29
  5. Step 5: Solve for x
    x = 5,068,069,874.29/86,017.27
  6. Step 6: Final answer
    x = 58,919.21

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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.