Home / 71,439.74-107,151.39-18,853.32

Finding the Fourth Proportional to 71,439.74, 107,151.39 and 18,853.32

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Solution

The fourth proportional to 71,439.74, 107,151.39 and 18,853.32 is: 28,277.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,439.74 : 107,151.39 = 18,853.32 : x
  2. Step 2: Convert to fraction form
    71,439.74/107,151.39 = 18,853.32/x
  3. Step 3: Cross multiply
    71,439.74x = 107,151.39 × 18,853.32
  4. Step 4: Simplify right side
    71,439.74x = 2,020,159,444.11
  5. Step 5: Solve for x
    x = 2,020,159,444.11/71,439.74
  6. Step 6: Final answer
    x = 28,277.81

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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.