Home / 90,343.33-135,385.13-50,816.95

Finding the Fourth Proportional to 90,343.33, 135,385.13 and 50,816.95

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Solution

The fourth proportional to 90,343.33, 135,385.13 and 50,816.95 is: 76,152.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,343.33 : 135,385.13 = 50,816.95 : x
  2. Step 2: Convert to fraction form
    90,343.33/135,385.13 = 50,816.95/x
  3. Step 3: Cross multiply
    90,343.33x = 135,385.13 × 50,816.95
  4. Step 4: Simplify right side
    90,343.33x = 6,879,859,381.95
  5. Step 5: Solve for x
    x = 6,879,859,381.95/90,343.33
  6. Step 6: Final answer
    x = 76,152.38

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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.