Home / 74,162.52-102,343.68-40,170.22

Finding the Fourth Proportional to 74,162.52, 102,343.68 and 40,170.22

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Solution

The fourth proportional to 74,162.52, 102,343.68 and 40,170.22 is: 55,434.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,162.52 : 102,343.68 = 40,170.22 : x
  2. Step 2: Convert to fraction form
    74,162.52/102,343.68 = 40,170.22/x
  3. Step 3: Cross multiply
    74,162.52x = 102,343.68 × 40,170.22
  4. Step 4: Simplify right side
    74,162.52x = 4,111,168,141.21
  5. Step 5: Solve for x
    x = 4,111,168,141.21/74,162.52
  6. Step 6: Final answer
    x = 55,434.58

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1.5x scale

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.