Home / 81,024.73-121,549.23-28,424.95

Finding the Fourth Proportional to 81,024.73, 121,549.23 and 28,424.95

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Solution

The fourth proportional to 81,024.73, 121,549.23 and 28,424.95 is: 42,641.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,024.73 : 121,549.23 = 28,424.95 : x
  2. Step 2: Convert to fraction form
    81,024.73/121,549.23 = 28,424.95/x
  3. Step 3: Cross multiply
    81,024.73x = 121,549.23 × 28,424.95
  4. Step 4: Simplify right side
    81,024.73x = 3,455,030,785.29
  5. Step 5: Solve for x
    x = 3,455,030,785.29/81,024.73
  6. Step 6: Final answer
    x = 42,641.68

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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.