Home / 74,162.50-102,343.43-40,170.15

Finding the Fourth Proportional to 74,162.50, 102,343.43 and 40,170.15

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Solution

The fourth proportional to 74,162.50, 102,343.43 and 40,170.15 is: 55,434.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,162.50 : 102,343.43 = 40,170.15 : x
  2. Step 2: Convert to fraction form
    74,162.50/102,343.43 = 40,170.15/x
  3. Step 3: Cross multiply
    74,162.50x = 102,343.43 × 40,170.15
  4. Step 4: Simplify right side
    74,162.50x = 4,111,151,035.04
  5. Step 5: Solve for x
    x = 4,111,151,035.04/74,162.50
  6. Step 6: Final answer
    x = 55,434.37

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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.