Home / 89,385.20-134,077.80-54,335.60

Finding the Fourth Proportional to 89,385.20, 134,077.80 and 54,335.60

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Solution

The fourth proportional to 89,385.20, 134,077.80 and 54,335.60 is: 81,503.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,385.20 : 134,077.80 = 54,335.60 : x
  2. Step 2: Convert to fraction form
    89,385.20/134,077.80 = 54,335.60/x
  3. Step 3: Cross multiply
    89,385.20x = 134,077.80 × 54,335.60
  4. Step 4: Simplify right side
    89,385.20x = 7,285,197,709.68
  5. Step 5: Solve for x
    x = 7,285,197,709.68/89,385.20
  6. Step 6: Final answer
    x = 81,503.40

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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.