Home / 80,672.40-111,298.59-48,829.68

Finding the Fourth Proportional to 80,672.40, 111,298.59 and 48,829.68

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Solution

The fourth proportional to 80,672.40, 111,298.59 and 48,829.68 is: 67,367.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,672.40 : 111,298.59 = 48,829.68 : x
  2. Step 2: Convert to fraction form
    80,672.40/111,298.59 = 48,829.68/x
  3. Step 3: Cross multiply
    80,672.40x = 111,298.59 × 48,829.68
  4. Step 4: Simplify right side
    80,672.40x = 5,434,674,534.15
  5. Step 5: Solve for x
    x = 5,434,674,534.15/80,672.40
  6. Step 6: Final answer
    x = 67,367.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.