Home / 74,036.22-102,170.79-40,501.50

Finding the Fourth Proportional to 74,036.22, 102,170.79 and 40,501.50

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Solution

The fourth proportional to 74,036.22, 102,170.79 and 40,501.50 is: 55,892.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,036.22 : 102,170.79 = 40,501.50 : x
  2. Step 2: Convert to fraction form
    74,036.22/102,170.79 = 40,501.50/x
  3. Step 3: Cross multiply
    74,036.22x = 102,170.79 × 40,501.50
  4. Step 4: Simplify right side
    74,036.22x = 4,138,070,251.19
  5. Step 5: Solve for x
    x = 4,138,070,251.19/74,036.22
  6. Step 6: Final answer
    x = 55,892.51

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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.