Home / 72,032.83-99,404.22-40,200.91

Finding the Fourth Proportional to 72,032.83, 99,404.22 and 40,200.91

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Solution

The fourth proportional to 72,032.83, 99,404.22 and 40,200.91 is: 55,476.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,032.83 : 99,404.22 = 40,200.91 : x
  2. Step 2: Convert to fraction form
    72,032.83/99,404.22 = 40,200.91/x
  3. Step 3: Cross multiply
    72,032.83x = 99,404.22 × 40,200.91
  4. Step 4: Simplify right side
    72,032.83x = 3,996,140,101.84
  5. Step 5: Solve for x
    x = 3,996,140,101.84/72,032.83
  6. Step 6: Final answer
    x = 55,476.65

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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.