Home / 74,521.26-102,839.27-42,690.29

Finding the Fourth Proportional to 74,521.26, 102,839.27 and 42,690.29

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Solution

The fourth proportional to 74,521.26, 102,839.27 and 42,690.29 is: 58,912.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,521.26 : 102,839.27 = 42,690.29 : x
  2. Step 2: Convert to fraction form
    74,521.26/102,839.27 = 42,690.29/x
  3. Step 3: Cross multiply
    74,521.26x = 102,839.27 × 42,690.29
  4. Step 4: Simplify right side
    74,521.26x = 4,390,237,532.04
  5. Step 5: Solve for x
    x = 4,390,237,532.04/74,521.26
  6. Step 6: Final answer
    x = 58,912.55

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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.