Home / 89,445.27-123,431.85-51,203.55

Finding the Fourth Proportional to 89,445.27, 123,431.85 and 51,203.55

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Solution

The fourth proportional to 89,445.27, 123,431.85 and 51,203.55 is: 70,659.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,445.27 : 123,431.85 = 51,203.55 : x
  2. Step 2: Convert to fraction form
    89,445.27/123,431.85 = 51,203.55/x
  3. Step 3: Cross multiply
    89,445.27x = 123,431.85 × 51,203.55
  4. Step 4: Simplify right side
    89,445.27x = 6,320,148,632.21
  5. Step 5: Solve for x
    x = 6,320,148,632.21/89,445.27
  6. Step 6: Final answer
    x = 70,659.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.