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Finding the Fourth Proportional to 72,296.60, 99,755.13 and 45,423.54

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Solution

The fourth proportional to 72,296.60, 99,755.13 and 45,423.54 is: 62,675.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,296.60 : 99,755.13 = 45,423.54 : x
  2. Step 2: Convert to fraction form
    72,296.60/99,755.13 = 45,423.54/x
  3. Step 3: Cross multiply
    72,296.60x = 99,755.13 × 45,423.54
  4. Step 4: Simplify right side
    72,296.60x = 4,531,230,803.20
  5. Step 5: Solve for x
    x = 4,531,230,803.20/72,296.60
  6. Step 6: Final answer
    x = 62,675.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.