Home / 89,775.52-123,889.38-48,939.64

Finding the Fourth Proportional to 89,775.52, 123,889.38 and 48,939.64

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Solution

The fourth proportional to 89,775.52, 123,889.38 and 48,939.64 is: 67,536.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,775.52 : 123,889.38 = 48,939.64 : x
  2. Step 2: Convert to fraction form
    89,775.52/123,889.38 = 48,939.64/x
  3. Step 3: Cross multiply
    89,775.52x = 123,889.38 × 48,939.64
  4. Step 4: Simplify right side
    89,775.52x = 6,063,101,657.02
  5. Step 5: Solve for x
    x = 6,063,101,657.02/89,775.52
  6. Step 6: Final answer
    x = 67,536.25

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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.