Home / 74,863.30-103,309.68-40,870.47

Finding the Fourth Proportional to 74,863.30, 103,309.68 and 40,870.47

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Solution

The fourth proportional to 74,863.30, 103,309.68 and 40,870.47 is: 56,400.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,863.30 : 103,309.68 = 40,870.47 : x
  2. Step 2: Convert to fraction form
    74,863.30/103,309.68 = 40,870.47/x
  3. Step 3: Cross multiply
    74,863.30x = 103,309.68 × 40,870.47
  4. Step 4: Simplify right side
    74,863.30x = 4,222,315,177.15
  5. Step 5: Solve for x
    x = 4,222,315,177.15/74,863.30
  6. Step 6: Final answer
    x = 56,400.33

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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.