Home / 89,394.60-134,121.04-42,641.40

Finding the Fourth Proportional to 89,394.60, 134,121.04 and 42,641.40

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Solution

The fourth proportional to 89,394.60, 134,121.04 and 42,641.40 is: 63,976.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,394.60 : 134,121.04 = 42,641.40 : x
  2. Step 2: Convert to fraction form
    89,394.60/134,121.04 = 42,641.40/x
  3. Step 3: Cross multiply
    89,394.60x = 134,121.04 × 42,641.40
  4. Step 4: Simplify right side
    89,394.60x = 5,719,108,915.06
  5. Step 5: Solve for x
    x = 5,719,108,915.06/89,394.60
  6. Step 6: Final answer
    x = 63,976.00

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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.