Home / 123,780.56-185,681.16-39,552.71

Finding the Fourth Proportional to 123,780.56, 185,681.16 and 39,552.71

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Solution

The fourth proportional to 123,780.56, 185,681.16 and 39,552.71 is: 59,332.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,780.56 : 185,681.16 = 39,552.71 : x
  2. Step 2: Convert to fraction form
    123,780.56/185,681.16 = 39,552.71/x
  3. Step 3: Cross multiply
    123,780.56x = 185,681.16 × 39,552.71
  4. Step 4: Simplify right side
    123,780.56x = 7,344,192,145.54
  5. Step 5: Solve for x
    x = 7,344,192,145.54/123,780.56
  6. Step 6: Final answer
    x = 59,332.36

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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.