Home / 91,534.72-137,354-49,414.28

Finding the Fourth Proportional to 91,534.72, 137,354 and 49,414.28

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Solution

The fourth proportional to 91,534.72, 137,354 and 49,414.28 is: 74,149.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,534.72 : 137,354 = 49,414.28 : x
  2. Step 2: Convert to fraction form
    91,534.72/137,354 = 49,414.28/x
  3. Step 3: Cross multiply
    91,534.72x = 137,354 × 49,414.28
  4. Step 4: Simplify right side
    91,534.72x = 6,787,249,015.12
  5. Step 5: Solve for x
    x = 6,787,249,015.12/91,534.72
  6. Step 6: Final answer
    x = 74,149.45

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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.