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Finding the Fourth Proportional to 65,438.34, 98,083.89 and 27,979.62

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Solution

The fourth proportional to 65,438.34, 98,083.89 and 27,979.62 is: 41,937.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,438.34 : 98,083.89 = 27,979.62 : x
  2. Step 2: Convert to fraction form
    65,438.34/98,083.89 = 27,979.62/x
  3. Step 3: Cross multiply
    65,438.34x = 98,083.89 × 27,979.62
  4. Step 4: Simplify right side
    65,438.34x = 2,744,349,970.32
  5. Step 5: Solve for x
    x = 2,744,349,970.32/65,438.34
  6. Step 6: Final answer
    x = 41,937.95

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1.5x scale

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.