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Finding the Fourth Proportional to 72,457.50, 108,687.60 and 22,537.20

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Solution

The fourth proportional to 72,457.50, 108,687.60 and 22,537.20 is: 33,806.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,457.50 : 108,687.60 = 22,537.20 : x
  2. Step 2: Convert to fraction form
    72,457.50/108,687.60 = 22,537.20/x
  3. Step 3: Cross multiply
    72,457.50x = 108,687.60 × 22,537.20
  4. Step 4: Simplify right side
    72,457.50x = 2,449,514,178.72
  5. Step 5: Solve for x
    x = 2,449,514,178.72/72,457.50
  6. Step 6: Final answer
    x = 33,806.22

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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.