Home / 75,083.60-112,641.96-28,336.88

Finding the Fourth Proportional to 75,083.60, 112,641.96 and 28,336.88

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Solution

The fourth proportional to 75,083.60, 112,641.96 and 28,336.88 is: 42,511.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,083.60 : 112,641.96 = 28,336.88 : x
  2. Step 2: Convert to fraction form
    75,083.60/112,641.96 = 28,336.88/x
  3. Step 3: Cross multiply
    75,083.60x = 112,641.96 × 28,336.88
  4. Step 4: Simplify right side
    75,083.60x = 3,191,921,703.48
  5. Step 5: Solve for x
    x = 3,191,921,703.48/75,083.60
  6. Step 6: Final answer
    x = 42,511.57

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1.5x scale

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.