Home / 77,258.04-114,845.18-74,987.88

Finding the Fourth Proportional to 77,258.04, 114,845.18 and 74,987.88

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Solution

The fourth proportional to 77,258.04, 114,845.18 and 74,987.88 is: 111,470.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,258.04 : 114,845.18 = 74,987.88 : x
  2. Step 2: Convert to fraction form
    77,258.04/114,845.18 = 74,987.88/x
  3. Step 3: Cross multiply
    77,258.04x = 114,845.18 × 74,987.88
  4. Step 4: Simplify right side
    77,258.04x = 8,611,996,576.42
  5. Step 5: Solve for x
    x = 8,611,996,576.42/77,258.04
  6. Step 6: Final answer
    x = 111,470.55

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.