Home / 91,966.80-137,924.28-39,433.44

Finding the Fourth Proportional to 91,966.80, 137,924.28 and 39,433.44

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Solution

The fourth proportional to 91,966.80, 137,924.28 and 39,433.44 is: 59,139.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,966.80 : 137,924.28 = 39,433.44 : x
  2. Step 2: Convert to fraction form
    91,966.80/137,924.28 = 39,433.44/x
  3. Step 3: Cross multiply
    91,966.80x = 137,924.28 × 39,433.44
  4. Step 4: Simplify right side
    91,966.80x = 5,438,828,819.92
  5. Step 5: Solve for x
    x = 5,438,828,819.92/91,966.80
  6. Step 6: Final answer
    x = 59,139.05

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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.