Home / 72,333.28-99,823.62-40,500.28

Finding the Fourth Proportional to 72,333.28, 99,823.62 and 40,500.28

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Solution

The fourth proportional to 72,333.28, 99,823.62 and 40,500.28 is: 55,892.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,333.28 : 99,823.62 = 40,500.28 : x
  2. Step 2: Convert to fraction form
    72,333.28/99,823.62 = 40,500.28/x
  3. Step 3: Cross multiply
    72,333.28x = 99,823.62 × 40,500.28
  4. Step 4: Simplify right side
    72,333.28x = 4,042,884,560.61
  5. Step 5: Solve for x
    x = 4,042,884,560.61/72,333.28
  6. Step 6: Final answer
    x = 55,892.45

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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.