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Finding the Fourth Proportional to 72,630.60, 108,654.30 and 62,878.20

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Solution

The fourth proportional to 72,630.60, 108,654.30 and 62,878.20 is: 94,064.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,630.60 : 108,654.30 = 62,878.20 : x
  2. Step 2: Convert to fraction form
    72,630.60/108,654.30 = 62,878.20/x
  3. Step 3: Cross multiply
    72,630.60x = 108,654.30 × 62,878.20
  4. Step 4: Simplify right side
    72,630.60x = 6,831,986,806.26
  5. Step 5: Solve for x
    x = 6,831,986,806.26/72,630.60
  6. Step 6: Final answer
    x = 94,064.85

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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.