Home / 89,627.64-134,378.55-39,680.64

Finding the Fourth Proportional to 89,627.64, 134,378.55 and 39,680.64

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Solution

The fourth proportional to 89,627.64, 134,378.55 and 39,680.64 is: 59,493.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,627.64 : 134,378.55 = 39,680.64 : x
  2. Step 2: Convert to fraction form
    89,627.64/134,378.55 = 39,680.64/x
  3. Step 3: Cross multiply
    89,627.64x = 134,378.55 × 39,680.64
  4. Step 4: Simplify right side
    89,627.64x = 5,332,226,866.27
  5. Step 5: Solve for x
    x = 5,332,226,866.27/89,627.64
  6. Step 6: Final answer
    x = 59,493.11

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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.