Home / 83,190.14-114,807.04-54,875.78

Finding the Fourth Proportional to 83,190.14, 114,807.04 and 54,875.78

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Solution

The fourth proportional to 83,190.14, 114,807.04 and 54,875.78 is: 75,731.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,190.14 : 114,807.04 = 54,875.78 : x
  2. Step 2: Convert to fraction form
    83,190.14/114,807.04 = 54,875.78/x
  3. Step 3: Cross multiply
    83,190.14x = 114,807.04 × 54,875.78
  4. Step 4: Simplify right side
    83,190.14x = 6,300,125,869.49
  5. Step 5: Solve for x
    x = 6,300,125,869.49/83,190.14
  6. Step 6: Final answer
    x = 75,731.64

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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.