Home / 80,780.94-121,281.03-55,759.50

Finding the Fourth Proportional to 80,780.94, 121,281.03 and 55,759.50

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Solution

The fourth proportional to 80,780.94, 121,281.03 and 55,759.50 is: 83,714.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,780.94 : 121,281.03 = 55,759.50 : x
  2. Step 2: Convert to fraction form
    80,780.94/121,281.03 = 55,759.50/x
  3. Step 3: Cross multiply
    80,780.94x = 121,281.03 × 55,759.50
  4. Step 4: Simplify right side
    80,780.94x = 6,762,569,592.29
  5. Step 5: Solve for x
    x = 6,762,569,592.29/80,780.94
  6. Step 6: Final answer
    x = 83,714.92

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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.