Home / 74,853.66-103,298.32-40,862.90

Finding the Fourth Proportional to 74,853.66, 103,298.32 and 40,862.90

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Solution

The fourth proportional to 74,853.66, 103,298.32 and 40,862.90 is: 56,390.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,853.66 : 103,298.32 = 40,862.90 : x
  2. Step 2: Convert to fraction form
    74,853.66/103,298.32 = 40,862.90/x
  3. Step 3: Cross multiply
    74,853.66x = 103,298.32 × 40,862.90
  4. Step 4: Simplify right side
    74,853.66x = 4,221,068,920.33
  5. Step 5: Solve for x
    x = 4,221,068,920.33/74,853.66
  6. Step 6: Final answer
    x = 56,390.95

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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.