Home / 99,941.28-137,917.24-54,618.24

Finding the Fourth Proportional to 99,941.28, 137,917.24 and 54,618.24

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Solution

The fourth proportional to 99,941.28, 137,917.24 and 54,618.24 is: 75,372.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,941.28 : 137,917.24 = 54,618.24 : x
  2. Step 2: Convert to fraction form
    99,941.28/137,917.24 = 54,618.24/x
  3. Step 3: Cross multiply
    99,941.28x = 137,917.24 × 54,618.24
  4. Step 4: Simplify right side
    99,941.28x = 7,532,796,914.46
  5. Step 5: Solve for x
    x = 7,532,796,914.46/99,941.28
  6. Step 6: Final answer
    x = 75,372.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.