Home / 69,039.28-103,557.86-31,061.72

Finding the Fourth Proportional to 69,039.28, 103,557.86 and 31,061.72

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Solution

The fourth proportional to 69,039.28, 103,557.86 and 31,061.72 is: 46,592.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,039.28 : 103,557.86 = 31,061.72 : x
  2. Step 2: Convert to fraction form
    69,039.28/103,557.86 = 31,061.72/x
  3. Step 3: Cross multiply
    69,039.28x = 103,557.86 × 31,061.72
  4. Step 4: Simplify right side
    69,039.28x = 3,216,685,251.12
  5. Step 5: Solve for x
    x = 3,216,685,251.12/69,039.28
  6. Step 6: Final answer
    x = 46,592.11

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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.