Home / 80,886.40-121,329.60-52,892.80

Finding the Fourth Proportional to 80,886.40, 121,329.60 and 52,892.80

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Solution

The fourth proportional to 80,886.40, 121,329.60 and 52,892.80 is: 79,339.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,886.40 : 121,329.60 = 52,892.80 : x
  2. Step 2: Convert to fraction form
    80,886.40/121,329.60 = 52,892.80/x
  3. Step 3: Cross multiply
    80,886.40x = 121,329.60 × 52,892.80
  4. Step 4: Simplify right side
    80,886.40x = 6,417,462,266.88
  5. Step 5: Solve for x
    x = 6,417,462,266.88/80,886.40
  6. Step 6: Final answer
    x = 79,339.20

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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.