Home / 99,590.28-137,435.10-54,268.76

Finding the Fourth Proportional to 99,590.28, 137,435.10 and 54,268.76

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Solution

The fourth proportional to 99,590.28, 137,435.10 and 54,268.76 is: 74,891.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,590.28 : 137,435.10 = 54,268.76 : x
  2. Step 2: Convert to fraction form
    99,590.28/137,435.10 = 54,268.76/x
  3. Step 3: Cross multiply
    99,590.28x = 137,435.10 × 54,268.76
  4. Step 4: Simplify right side
    99,590.28x = 7,458,432,457.48
  5. Step 5: Solve for x
    x = 7,458,432,457.48/99,590.28
  6. Step 6: Final answer
    x = 74,891.17

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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.