Home / 72,374.06-99,874.41-40,542.74

Finding the Fourth Proportional to 72,374.06, 99,874.41 and 40,542.74

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Solution

The fourth proportional to 72,374.06, 99,874.41 and 40,542.74 is: 55,947.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,374.06 : 99,874.41 = 40,542.74 : x
  2. Step 2: Convert to fraction form
    72,374.06/99,874.41 = 40,542.74/x
  3. Step 3: Cross multiply
    72,374.06x = 99,874.41 × 40,542.74
  4. Step 4: Simplify right side
    72,374.06x = 4,049,182,237.28
  5. Step 5: Solve for x
    x = 4,049,182,237.28/72,374.06
  6. Step 6: Final answer
    x = 55,947.98

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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.