Home / 74,020.50-102,148.29-40,487.22

Finding the Fourth Proportional to 74,020.50, 102,148.29 and 40,487.22

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Solution

The fourth proportional to 74,020.50, 102,148.29 and 40,487.22 is: 55,872.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,020.50 : 102,148.29 = 40,487.22 : x
  2. Step 2: Convert to fraction form
    74,020.50/102,148.29 = 40,487.22/x
  3. Step 3: Cross multiply
    74,020.50x = 102,148.29 × 40,487.22
  4. Step 4: Simplify right side
    74,020.50x = 4,135,700,289.85
  5. Step 5: Solve for x
    x = 4,135,700,289.85/74,020.50
  6. Step 6: Final answer
    x = 55,872.36

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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.