Home / 88,851.18-122,406.15-61,944.78

Finding the Fourth Proportional to 88,851.18, 122,406.15 and 61,944.78

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Solution

The fourth proportional to 88,851.18, 122,406.15 and 61,944.78 is: 85,338.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,851.18 : 122,406.15 = 61,944.78 : x
  2. Step 2: Convert to fraction form
    88,851.18/122,406.15 = 61,944.78/x
  3. Step 3: Cross multiply
    88,851.18x = 122,406.15 × 61,944.78
  4. Step 4: Simplify right side
    88,851.18x = 7,582,422,032.40
  5. Step 5: Solve for x
    x = 7,582,422,032.40/88,851.18
  6. Step 6: Final answer
    x = 85,338.45

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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.