Home / 75,436.18-104,101.20-40,981.62

Finding the Fourth Proportional to 75,436.18, 104,101.20 and 40,981.62

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Solution

The fourth proportional to 75,436.18, 104,101.20 and 40,981.62 is: 56,554.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,436.18 : 104,101.20 = 40,981.62 : x
  2. Step 2: Convert to fraction form
    75,436.18/104,101.20 = 40,981.62/x
  3. Step 3: Cross multiply
    75,436.18x = 104,101.20 × 40,981.62
  4. Step 4: Simplify right side
    75,436.18x = 4,266,235,819.94
  5. Step 5: Solve for x
    x = 4,266,235,819.94/75,436.18
  6. Step 6: Final answer
    x = 56,554.24

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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.