Home / 74,191.50-102,384.18-40,200.87

Finding the Fourth Proportional to 74,191.50, 102,384.18 and 40,200.87

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Solution

The fourth proportional to 74,191.50, 102,384.18 and 40,200.87 is: 55,477.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,191.50 : 102,384.18 = 40,200.87 : x
  2. Step 2: Convert to fraction form
    74,191.50/102,384.18 = 40,200.87/x
  3. Step 3: Cross multiply
    74,191.50x = 102,384.18 × 40,200.87
  4. Step 4: Simplify right side
    74,191.50x = 4,115,933,110.24
  5. Step 5: Solve for x
    x = 4,115,933,110.24/74,191.50
  6. Step 6: Final answer
    x = 55,477.15

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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.