Home / 80,897.60-121,346.40-34,203.20

Finding the Fourth Proportional to 80,897.60, 121,346.40 and 34,203.20

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Solution

The fourth proportional to 80,897.60, 121,346.40 and 34,203.20 is: 51,304.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,897.60 : 121,346.40 = 34,203.20 : x
  2. Step 2: Convert to fraction form
    80,897.60/121,346.40 = 34,203.20/x
  3. Step 3: Cross multiply
    80,897.60x = 121,346.40 × 34,203.20
  4. Step 4: Simplify right side
    80,897.60x = 4,150,435,188.48
  5. Step 5: Solve for x
    x = 4,150,435,188.48/80,897.60
  6. Step 6: Final answer
    x = 51,304.80

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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.