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Finding the Fourth Proportional to 72,000.29, 99,380.32 and 41,795.39

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Solution

The fourth proportional to 72,000.29, 99,380.32 and 41,795.39 is: 57,689.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,000.29 : 99,380.32 = 41,795.39 : x
  2. Step 2: Convert to fraction form
    72,000.29/99,380.32 = 41,795.39/x
  3. Step 3: Cross multiply
    72,000.29x = 99,380.32 × 41,795.39
  4. Step 4: Simplify right side
    72,000.29x = 4,153,639,376.69
  5. Step 5: Solve for x
    x = 4,153,639,376.69/72,000.29
  6. Step 6: Final answer
    x = 57,689.20

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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.