Home / 87,928.48-131,929.28-48,482.40

Finding the Fourth Proportional to 87,928.48, 131,929.28 and 48,482.40

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Solution

The fourth proportional to 87,928.48, 131,929.28 and 48,482.40 is: 72,743.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,928.48 : 131,929.28 = 48,482.40 : x
  2. Step 2: Convert to fraction form
    87,928.48/131,929.28 = 48,482.40/x
  3. Step 3: Cross multiply
    87,928.48x = 131,929.28 × 48,482.40
  4. Step 4: Simplify right side
    87,928.48x = 6,396,248,124.67
  5. Step 5: Solve for x
    x = 6,396,248,124.67/87,928.48
  6. Step 6: Final answer
    x = 72,743.76

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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.