Home / 65,792.20-98,688.30-61,385.80

Finding the Fourth Proportional to 65,792.20, 98,688.30 and 61,385.80

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Solution

The fourth proportional to 65,792.20, 98,688.30 and 61,385.80 is: 92,078.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,792.20 : 98,688.30 = 61,385.80 : x
  2. Step 2: Convert to fraction form
    65,792.20/98,688.30 = 61,385.80/x
  3. Step 3: Cross multiply
    65,792.20x = 98,688.30 × 61,385.80
  4. Step 4: Simplify right side
    65,792.20x = 6,058,060,246.14
  5. Step 5: Solve for x
    x = 6,058,060,246.14/65,792.20
  6. Step 6: Final answer
    x = 92,078.70

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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.