Home / 86,017.26-129,068.17-38,665.81

Finding the Fourth Proportional to 86,017.26, 129,068.17 and 38,665.81

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Solution

The fourth proportional to 86,017.26, 129,068.17 and 38,665.81 is: 58,017.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,017.26 : 129,068.17 = 38,665.81 : x
  2. Step 2: Convert to fraction form
    86,017.26/129,068.17 = 38,665.81/x
  3. Step 3: Cross multiply
    86,017.26x = 129,068.17 × 38,665.81
  4. Step 4: Simplify right side
    86,017.26x = 4,990,525,402.94
  5. Step 5: Solve for x
    x = 4,990,525,402.94/86,017.26
  6. Step 6: Final answer
    x = 58,017.72

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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.