Home / 74,803.27-103,237.65-42,972.10

Finding the Fourth Proportional to 74,803.27, 103,237.65 and 42,972.10

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Solution

The fourth proportional to 74,803.27, 103,237.65 and 42,972.10 is: 59,306.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,803.27 : 103,237.65 = 42,972.10 : x
  2. Step 2: Convert to fraction form
    74,803.27/103,237.65 = 42,972.10/x
  3. Step 3: Cross multiply
    74,803.27x = 103,237.65 × 42,972.10
  4. Step 4: Simplify right side
    74,803.27x = 4,436,338,619.57
  5. Step 5: Solve for x
    x = 4,436,338,619.57/74,803.27
  6. Step 6: Final answer
    x = 59,306.75

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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.