Home / 74,909.18-112,298.16-28,194.86

Finding the Fourth Proportional to 74,909.18, 112,298.16 and 28,194.86

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Solution

The fourth proportional to 74,909.18, 112,298.16 and 28,194.86 is: 42,267.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,909.18 : 112,298.16 = 28,194.86 : x
  2. Step 2: Convert to fraction form
    74,909.18/112,298.16 = 28,194.86/x
  3. Step 3: Cross multiply
    74,909.18x = 112,298.16 × 28,194.86
  4. Step 4: Simplify right side
    74,909.18x = 3,166,230,899.46
  5. Step 5: Solve for x
    x = 3,166,230,899.46/74,909.18
  6. Step 6: Final answer
    x = 42,267.60

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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.