Home / 90,824.55-136,197.95-28,499.91

Finding the Fourth Proportional to 90,824.55, 136,197.95 and 28,499.91

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Solution

The fourth proportional to 90,824.55, 136,197.95 and 28,499.91 is: 42,737.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,824.55 : 136,197.95 = 28,499.91 : x
  2. Step 2: Convert to fraction form
    90,824.55/136,197.95 = 28,499.91/x
  3. Step 3: Cross multiply
    90,824.55x = 136,197.95 × 28,499.91
  4. Step 4: Simplify right side
    90,824.55x = 3,881,629,174.68
  5. Step 5: Solve for x
    x = 3,881,629,174.68/90,824.55
  6. Step 6: Final answer
    x = 42,737.66

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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.