Home / 65,013.18-89,724.56-39,517.32

Finding the Fourth Proportional to 65,013.18, 89,724.56 and 39,517.32

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Solution

The fourth proportional to 65,013.18, 89,724.56 and 39,517.32 is: 54,537.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,013.18 : 89,724.56 = 39,517.32 : x
  2. Step 2: Convert to fraction form
    65,013.18/89,724.56 = 39,517.32/x
  3. Step 3: Cross multiply
    65,013.18x = 89,724.56 × 39,517.32
  4. Step 4: Simplify right side
    65,013.18x = 3,545,673,951.79
  5. Step 5: Solve for x
    x = 3,545,673,951.79/65,013.18
  6. Step 6: Final answer
    x = 54,537.77

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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.