Home / 86,681.68-130,013.20-58,780.83

Finding the Fourth Proportional to 86,681.68, 130,013.20 and 58,780.83

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Solution

The fourth proportional to 86,681.68, 130,013.20 and 58,780.83 is: 88,164.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,681.68 : 130,013.20 = 58,780.83 : x
  2. Step 2: Convert to fraction form
    86,681.68/130,013.20 = 58,780.83/x
  3. Step 3: Cross multiply
    86,681.68x = 130,013.20 × 58,780.83
  4. Step 4: Simplify right side
    86,681.68x = 7,642,283,156.89
  5. Step 5: Solve for x
    x = 7,642,283,156.89/86,681.68
  6. Step 6: Final answer
    x = 88,164.92

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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.