Home / 88,180.55-121,724.06-61,338.64

Finding the Fourth Proportional to 88,180.55, 121,724.06 and 61,338.64

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Solution

The fourth proportional to 88,180.55, 121,724.06 and 61,338.64 is: 84,671.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,180.55 : 121,724.06 = 61,338.64 : x
  2. Step 2: Convert to fraction form
    88,180.55/121,724.06 = 61,338.64/x
  3. Step 3: Cross multiply
    88,180.55x = 121,724.06 × 61,338.64
  4. Step 4: Simplify right side
    88,180.55x = 7,466,388,295.68
  5. Step 5: Solve for x
    x = 7,466,388,295.68/88,180.55
  6. Step 6: Final answer
    x = 84,671.60

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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.