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Finding the Fourth Proportional to 65,410.80, 98,116.20 and 62,130.30

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Solution

The fourth proportional to 65,410.80, 98,116.20 and 62,130.30 is: 93,195.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,410.80 : 98,116.20 = 62,130.30 : x
  2. Step 2: Convert to fraction form
    65,410.80/98,116.20 = 62,130.30/x
  3. Step 3: Cross multiply
    65,410.80x = 98,116.20 × 62,130.30
  4. Step 4: Simplify right side
    65,410.80x = 6,095,988,940.86
  5. Step 5: Solve for x
    x = 6,095,988,940.86/65,410.80
  6. Step 6: Final answer
    x = 93,195.45

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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.