Home / 74,077.60-111,067.04-40,813.28

Finding the Fourth Proportional to 74,077.60, 111,067.04 and 40,813.28

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Solution

The fourth proportional to 74,077.60, 111,067.04 and 40,813.28 is: 61,192.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,077.60 : 111,067.04 = 40,813.28 : x
  2. Step 2: Convert to fraction form
    74,077.60/111,067.04 = 40,813.28/x
  3. Step 3: Cross multiply
    74,077.60x = 111,067.04 × 40,813.28
  4. Step 4: Simplify right side
    74,077.60x = 4,533,010,202.29
  5. Step 5: Solve for x
    x = 4,533,010,202.29/74,077.60
  6. Step 6: Final answer
    x = 61,192.72

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1.5x scale

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.