Home / 90,616.11-136,007.21-48,543.70

Finding the Fourth Proportional to 90,616.11, 136,007.21 and 48,543.70

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Solution

The fourth proportional to 90,616.11, 136,007.21 and 48,543.70 is: 72,860.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,616.11 : 136,007.21 = 48,543.70 : x
  2. Step 2: Convert to fraction form
    90,616.11/136,007.21 = 48,543.70/x
  3. Step 3: Cross multiply
    90,616.11x = 136,007.21 × 48,543.70
  4. Step 4: Simplify right side
    90,616.11x = 6,602,292,957.36
  5. Step 5: Solve for x
    x = 6,602,292,957.36/90,616.11
  6. Step 6: Final answer
    x = 72,860.04

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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.