Home / 89,730.20-134,336.10-54,738.20

Finding the Fourth Proportional to 89,730.20, 134,336.10 and 54,738.20

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Solution

The fourth proportional to 89,730.20, 134,336.10 and 54,738.20 is: 81,949.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,730.20 : 134,336.10 = 54,738.20 : x
  2. Step 2: Convert to fraction form
    89,730.20/134,336.10 = 54,738.20/x
  3. Step 3: Cross multiply
    89,730.20x = 134,336.10 × 54,738.20
  4. Step 4: Simplify right side
    89,730.20x = 7,353,316,309.02
  5. Step 5: Solve for x
    x = 7,353,316,309.02/89,730.20
  6. Step 6: Final answer
    x = 81,949.18

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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.