Home / 85,332.20-127,998.30-54,202.60

Finding the Fourth Proportional to 85,332.20, 127,998.30 and 54,202.60

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Solution

The fourth proportional to 85,332.20, 127,998.30 and 54,202.60 is: 81,303.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,332.20 : 127,998.30 = 54,202.60 : x
  2. Step 2: Convert to fraction form
    85,332.20/127,998.30 = 54,202.60/x
  3. Step 3: Cross multiply
    85,332.20x = 127,998.30 × 54,202.60
  4. Step 4: Simplify right side
    85,332.20x = 6,937,840,655.58
  5. Step 5: Solve for x
    x = 6,937,840,655.58/85,332.20
  6. Step 6: Final answer
    x = 81,303.90

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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.