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Finding the Fourth Proportional to 60,671.30, 90,895.91 and 43,989.89

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Solution

The fourth proportional to 60,671.30, 90,895.91 and 43,989.89 is: 65,904.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,671.30 : 90,895.91 = 43,989.89 : x
  2. Step 2: Convert to fraction form
    60,671.30/90,895.91 = 43,989.89/x
  3. Step 3: Cross multiply
    60,671.30x = 90,895.91 × 43,989.89
  4. Step 4: Simplify right side
    60,671.30x = 3,998,500,407.92
  5. Step 5: Solve for x
    x = 3,998,500,407.92/60,671.30
  6. Step 6: Final answer
    x = 65,904.32

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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.