Home / 72,031.32-99,399.17-40,202.27

Finding the Fourth Proportional to 72,031.32, 99,399.17 and 40,202.27

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Solution

The fourth proportional to 72,031.32, 99,399.17 and 40,202.27 is: 55,476.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,031.32 : 99,399.17 = 40,202.27 : x
  2. Step 2: Convert to fraction form
    72,031.32/99,399.17 = 40,202.27/x
  3. Step 3: Cross multiply
    72,031.32x = 99,399.17 × 40,202.27
  4. Step 4: Simplify right side
    72,031.32x = 3,996,071,873.63
  5. Step 5: Solve for x
    x = 3,996,071,873.63/72,031.32
  6. Step 6: Final answer
    x = 55,476.87

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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.