Home / 83,210.70-124,816.05-51,717.90

Finding the Fourth Proportional to 83,210.70, 124,816.05 and 51,717.90

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Solution

The fourth proportional to 83,210.70, 124,816.05 and 51,717.90 is: 77,576.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,210.70 : 124,816.05 = 51,717.90 : x
  2. Step 2: Convert to fraction form
    83,210.70/124,816.05 = 51,717.90/x
  3. Step 3: Cross multiply
    83,210.70x = 124,816.05 × 51,717.90
  4. Step 4: Simplify right side
    83,210.70x = 6,455,223,992.30
  5. Step 5: Solve for x
    x = 6,455,223,992.30/83,210.70
  6. Step 6: Final answer
    x = 77,576.85

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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.