Home / 83,412.06-115,108.70-45,171.91

Finding the Fourth Proportional to 83,412.06, 115,108.70 and 45,171.91

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Solution

The fourth proportional to 83,412.06, 115,108.70 and 45,171.91 is: 62,337.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,412.06 : 115,108.70 = 45,171.91 : x
  2. Step 2: Convert to fraction form
    83,412.06/115,108.70 = 45,171.91/x
  3. Step 3: Cross multiply
    83,412.06x = 115,108.70 × 45,171.91
  4. Step 4: Simplify right side
    83,412.06x = 5,199,679,836.62
  5. Step 5: Solve for x
    x = 5,199,679,836.62/83,412.06
  6. Step 6: Final answer
    x = 62,337.27

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.