Home / 74,734.40-103,130.40-47,839.04

Finding the Fourth Proportional to 74,734.40, 103,130.40 and 47,839.04

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Solution

The fourth proportional to 74,734.40, 103,130.40 and 47,839.04 is: 66,015.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,734.40 : 103,130.40 = 47,839.04 : x
  2. Step 2: Convert to fraction form
    74,734.40/103,130.40 = 47,839.04/x
  3. Step 3: Cross multiply
    74,734.40x = 103,130.40 × 47,839.04
  4. Step 4: Simplify right side
    74,734.40x = 4,933,659,330.82
  5. Step 5: Solve for x
    x = 4,933,659,330.82/74,734.40
  6. Step 6: Final answer
    x = 66,015.91

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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.