Home / 63,769.12-88,009.20-38,618.56

Finding the Fourth Proportional to 63,769.12, 88,009.20 and 38,618.56

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Solution

The fourth proportional to 63,769.12, 88,009.20 and 38,618.56 is: 53,298.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,769.12 : 88,009.20 = 38,618.56 : x
  2. Step 2: Convert to fraction form
    63,769.12/88,009.20 = 38,618.56/x
  3. Step 3: Cross multiply
    63,769.12x = 88,009.20 × 38,618.56
  4. Step 4: Simplify right side
    63,769.12x = 3,398,788,570.75
  5. Step 5: Solve for x
    x = 3,398,788,570.75/63,769.12
  6. Step 6: Final answer
    x = 53,298.35

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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.