Home / 66,781.28-100,088.76-58,441.52

Finding the Fourth Proportional to 66,781.28, 100,088.76 and 58,441.52

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Solution

The fourth proportional to 66,781.28, 100,088.76 and 58,441.52 is: 87,589.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,781.28 : 100,088.76 = 58,441.52 : x
  2. Step 2: Convert to fraction form
    66,781.28/100,088.76 = 58,441.52/x
  3. Step 3: Cross multiply
    66,781.28x = 100,088.76 × 58,441.52
  4. Step 4: Simplify right side
    66,781.28x = 5,849,339,269.32
  5. Step 5: Solve for x
    x = 5,849,339,269.32/66,781.28
  6. Step 6: Final answer
    x = 87,589.51

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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.