Home / 74,818.11-112,248.90-28,074.63

Finding the Fourth Proportional to 74,818.11, 112,248.90 and 28,074.63

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Solution

The fourth proportional to 74,818.11, 112,248.90 and 28,074.63 is: 42,120.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,818.11 : 112,248.90 = 28,074.63 : x
  2. Step 2: Convert to fraction form
    74,818.11/112,248.90 = 28,074.63/x
  3. Step 3: Cross multiply
    74,818.11x = 112,248.90 × 28,074.63
  4. Step 4: Simplify right side
    74,818.11x = 3,151,346,335.41
  5. Step 5: Solve for x
    x = 3,151,346,335.41/74,818.11
  6. Step 6: Final answer
    x = 42,120.10

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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.