Home / 86,203.31-129,307.13-23,874.35

Finding the Fourth Proportional to 86,203.31, 129,307.13 and 23,874.35

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Solution

The fourth proportional to 86,203.31, 129,307.13 and 23,874.35 is: 35,812.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,203.31 : 129,307.13 = 23,874.35 : x
  2. Step 2: Convert to fraction form
    86,203.31/129,307.13 = 23,874.35/x
  3. Step 3: Cross multiply
    86,203.31x = 129,307.13 × 23,874.35
  4. Step 4: Simplify right side
    86,203.31x = 3,087,123,559.74
  5. Step 5: Solve for x
    x = 3,087,123,559.74/86,203.31
  6. Step 6: Final answer
    x = 35,812.12

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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.