Home / 74,111.32-102,273.06-40,119.88

Finding the Fourth Proportional to 74,111.32, 102,273.06 and 40,119.88

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Solution

The fourth proportional to 74,111.32, 102,273.06 and 40,119.88 is: 55,365.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,111.32 : 102,273.06 = 40,119.88 : x
  2. Step 2: Convert to fraction form
    74,111.32/102,273.06 = 40,119.88/x
  3. Step 3: Cross multiply
    74,111.32x = 102,273.06 × 40,119.88
  4. Step 4: Simplify right side
    74,111.32x = 4,103,182,894.43
  5. Step 5: Solve for x
    x = 4,103,182,894.43/74,111.32
  6. Step 6: Final answer
    x = 55,365.13

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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.