Home / 51,687.14-77,882.40-42,532.47

Finding the Fourth Proportional to 51,687.14, 77,882.40 and 42,532.47

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Solution

The fourth proportional to 51,687.14, 77,882.40 and 42,532.47 is: 64,088.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,687.14 : 77,882.40 = 42,532.47 : x
  2. Step 2: Convert to fraction form
    51,687.14/77,882.40 = 42,532.47/x
  3. Step 3: Cross multiply
    51,687.14x = 77,882.40 × 42,532.47
  4. Step 4: Simplify right side
    51,687.14x = 3,312,530,841.53
  5. Step 5: Solve for x
    x = 3,312,530,841.53/51,687.14
  6. Step 6: Final answer
    x = 64,088.11

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.