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Finding the Fourth Proportional to 72,773.60, 100,441.36 and 45,562.34

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Solution

The fourth proportional to 72,773.60, 100,441.36 and 45,562.34 is: 62,884.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,773.60 : 100,441.36 = 45,562.34 : x
  2. Step 2: Convert to fraction form
    72,773.60/100,441.36 = 45,562.34/x
  3. Step 3: Cross multiply
    72,773.60x = 100,441.36 × 45,562.34
  4. Step 4: Simplify right side
    72,773.60x = 4,576,343,394.38
  5. Step 5: Solve for x
    x = 4,576,343,394.38/72,773.60
  6. Step 6: Final answer
    x = 62,884.66

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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.