Home / 72,444.39-108,657.35-28,040.76

Finding the Fourth Proportional to 72,444.39, 108,657.35 and 28,040.76

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Solution

The fourth proportional to 72,444.39, 108,657.35 and 28,040.76 is: 42,057.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,444.39 : 108,657.35 = 28,040.76 : x
  2. Step 2: Convert to fraction form
    72,444.39/108,657.35 = 28,040.76/x
  3. Step 3: Cross multiply
    72,444.39x = 108,657.35 × 28,040.76
  4. Step 4: Simplify right side
    72,444.39x = 3,046,834,638.54
  5. Step 5: Solve for x
    x = 3,046,834,638.54/72,444.39
  6. Step 6: Final answer
    x = 42,057.57

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.