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Finding the Fourth Proportional to 89,465.64, 134,199.58 and 38,853

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Solution

The fourth proportional to 89,465.64, 134,199.58 and 38,853 is: 58,279.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,465.64 : 134,199.58 = 38,853 : x
  2. Step 2: Convert to fraction form
    89,465.64/134,199.58 = 38,853/x
  3. Step 3: Cross multiply
    89,465.64x = 134,199.58 × 38,853
  4. Step 4: Simplify right side
    89,465.64x = 5,214,056,281.74
  5. Step 5: Solve for x
    x = 5,214,056,281.74/89,465.64
  6. Step 6: Final answer
    x = 58,279.99

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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.