Home / 72,032.28-99,404.22-40,201.08

Finding the Fourth Proportional to 72,032.28, 99,404.22 and 40,201.08

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Solution

The fourth proportional to 72,032.28, 99,404.22 and 40,201.08 is: 55,477.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,032.28 : 99,404.22 = 40,201.08 : x
  2. Step 2: Convert to fraction form
    72,032.28/99,404.22 = 40,201.08/x
  3. Step 3: Cross multiply
    72,032.28x = 99,404.22 × 40,201.08
  4. Step 4: Simplify right side
    72,032.28x = 3,996,157,000.56
  5. Step 5: Solve for x
    x = 3,996,157,000.56/72,032.28
  6. Step 6: Final answer
    x = 55,477.31

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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.