Home / 72,247.59-99,701.82-40,417.02

Finding the Fourth Proportional to 72,247.59, 99,701.82 and 40,417.02

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Solution

The fourth proportional to 72,247.59, 99,701.82 and 40,417.02 is: 55,775.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,247.59 : 99,701.82 = 40,417.02 : x
  2. Step 2: Convert to fraction form
    72,247.59/99,701.82 = 40,417.02/x
  3. Step 3: Cross multiply
    72,247.59x = 99,701.82 × 40,417.02
  4. Step 4: Simplify right side
    72,247.59x = 4,029,650,452.98
  5. Step 5: Solve for x
    x = 4,029,650,452.98/72,247.59
  6. Step 6: Final answer
    x = 55,775.57

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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.