Home / 88,217.64-121,713.51-49,971.10

Finding the Fourth Proportional to 88,217.64, 121,713.51 and 49,971.10

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Solution

The fourth proportional to 88,217.64, 121,713.51 and 49,971.10 is: 68,944.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,217.64 : 121,713.51 = 49,971.10 : x
  2. Step 2: Convert to fraction form
    88,217.64/121,713.51 = 49,971.10/x
  3. Step 3: Cross multiply
    88,217.64x = 121,713.51 × 49,971.10
  4. Step 4: Simplify right side
    88,217.64x = 6,082,157,979.56
  5. Step 5: Solve for x
    x = 6,082,157,979.56/88,217.64
  6. Step 6: Final answer
    x = 68,944.92

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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.