Home / 74,948.20-112,441.74-39,859

Finding the Fourth Proportional to 74,948.20, 112,441.74 and 39,859

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Solution

The fourth proportional to 74,948.20, 112,441.74 and 39,859 is: 59,798.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,948.20 : 112,441.74 = 39,859 : x
  2. Step 2: Convert to fraction form
    74,948.20/112,441.74 = 39,859/x
  3. Step 3: Cross multiply
    74,948.20x = 112,441.74 × 39,859
  4. Step 4: Simplify right side
    74,948.20x = 4,481,815,314.66
  5. Step 5: Solve for x
    x = 4,481,815,314.66/74,948.20
  6. Step 6: Final answer
    x = 59,798.84

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.