Home / 80,886.15-121,342.59-36,511.92

Finding the Fourth Proportional to 80,886.15, 121,342.59 and 36,511.92

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Solution

The fourth proportional to 80,886.15, 121,342.59 and 36,511.92 is: 54,773.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,886.15 : 121,342.59 = 36,511.92 : x
  2. Step 2: Convert to fraction form
    80,886.15/121,342.59 = 36,511.92/x
  3. Step 3: Cross multiply
    80,886.15x = 121,342.59 × 36,511.92
  4. Step 4: Simplify right side
    80,886.15x = 4,430,450,938.67
  5. Step 5: Solve for x
    x = 4,430,450,938.67/80,886.15
  6. Step 6: Final answer
    x = 54,773.91

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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.