Home / 90,696.24-136,022.50-28,366.76

Finding the Fourth Proportional to 90,696.24, 136,022.50 and 28,366.76

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Solution

The fourth proportional to 90,696.24, 136,022.50 and 28,366.76 is: 42,543.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,696.24 : 136,022.50 = 28,366.76 : x
  2. Step 2: Convert to fraction form
    90,696.24/136,022.50 = 28,366.76/x
  3. Step 3: Cross multiply
    90,696.24x = 136,022.50 × 28,366.76
  4. Step 4: Simplify right side
    90,696.24x = 3,858,517,612.10
  5. Step 5: Solve for x
    x = 3,858,517,612.10/90,696.24
  6. Step 6: Final answer
    x = 42,543.30

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1.5x scale

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.