Home / 75,071.74-103,684.04-51,156.90

Finding the Fourth Proportional to 75,071.74, 103,684.04 and 51,156.90

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Solution

The fourth proportional to 75,071.74, 103,684.04 and 51,156.90 is: 70,654.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,071.74 : 103,684.04 = 51,156.90 : x
  2. Step 2: Convert to fraction form
    75,071.74/103,684.04 = 51,156.90/x
  3. Step 3: Cross multiply
    75,071.74x = 103,684.04 × 51,156.90
  4. Step 4: Simplify right side
    75,071.74x = 5,304,154,065.88
  5. Step 5: Solve for x
    x = 5,304,154,065.88/75,071.74
  6. Step 6: Final answer
    x = 70,654.47

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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.