Home / 88,010.76-121,422.96-57,812.34

Finding the Fourth Proportional to 88,010.76, 121,422.96 and 57,812.34

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Solution

The fourth proportional to 88,010.76, 121,422.96 and 57,812.34 is: 79,760.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,010.76 : 121,422.96 = 57,812.34 : x
  2. Step 2: Convert to fraction form
    88,010.76/121,422.96 = 57,812.34/x
  3. Step 3: Cross multiply
    88,010.76x = 121,422.96 × 57,812.34
  4. Step 4: Simplify right side
    88,010.76x = 7,019,745,447.33
  5. Step 5: Solve for x
    x = 7,019,745,447.33/88,010.76
  6. Step 6: Final answer
    x = 79,760.08

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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.