Home / 74,282.16-102,396.24-62,909.76

Finding the Fourth Proportional to 74,282.16, 102,396.24 and 62,909.76

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Solution

The fourth proportional to 74,282.16, 102,396.24 and 62,909.76 is: 86,719.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,282.16 : 102,396.24 = 62,909.76 : x
  2. Step 2: Convert to fraction form
    74,282.16/102,396.24 = 62,909.76/x
  3. Step 3: Cross multiply
    74,282.16x = 102,396.24 × 62,909.76
  4. Step 4: Simplify right side
    74,282.16x = 6,441,722,883.30
  5. Step 5: Solve for x
    x = 6,441,722,883.30/74,282.16
  6. Step 6: Final answer
    x = 86,719.65

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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.