Home / 72,261.01-99,720.33-40,429.95

Finding the Fourth Proportional to 72,261.01, 99,720.33 and 40,429.95

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Solution

The fourth proportional to 72,261.01, 99,720.33 and 40,429.95 is: 55,793.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,261.01 : 99,720.33 = 40,429.95 : x
  2. Step 2: Convert to fraction form
    72,261.01/99,720.33 = 40,429.95/x
  3. Step 3: Cross multiply
    72,261.01x = 99,720.33 × 40,429.95
  4. Step 4: Simplify right side
    72,261.01x = 4,031,687,955.88
  5. Step 5: Solve for x
    x = 4,031,687,955.88/72,261.01
  6. Step 6: Final answer
    x = 55,793.41

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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.