Home / 77,761.20-116,545.80-52,801.20

Finding the Fourth Proportional to 77,761.20, 116,545.80 and 52,801.20

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Solution

The fourth proportional to 77,761.20, 116,545.80 and 52,801.20 is: 79,136.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,761.20 : 116,545.80 = 52,801.20 : x
  2. Step 2: Convert to fraction form
    77,761.20/116,545.80 = 52,801.20/x
  3. Step 3: Cross multiply
    77,761.20x = 116,545.80 × 52,801.20
  4. Step 4: Simplify right side
    77,761.20x = 6,153,758,094.96
  5. Step 5: Solve for x
    x = 6,153,758,094.96/77,761.20
  6. Step 6: Final answer
    x = 79,136.61

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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.