Home / 72,689.05-100,296.17-42,468.53

Finding the Fourth Proportional to 72,689.05, 100,296.17 and 42,468.53

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Solution

The fourth proportional to 72,689.05, 100,296.17 and 42,468.53 is: 58,597.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,689.05 : 100,296.17 = 42,468.53 : x
  2. Step 2: Convert to fraction form
    72,689.05/100,296.17 = 42,468.53/x
  3. Step 3: Cross multiply
    72,689.05x = 100,296.17 × 42,468.53
  4. Step 4: Simplify right side
    72,689.05x = 4,259,430,904.53
  5. Step 5: Solve for x
    x = 4,259,430,904.53/72,689.05
  6. Step 6: Final answer
    x = 58,597.97

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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.