Home / 51,639.29-71,262.50-30,144.05

Finding the Fourth Proportional to 51,639.29, 71,262.50 and 30,144.05

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Solution

The fourth proportional to 51,639.29, 71,262.50 and 30,144.05 is: 41,598.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,639.29 : 71,262.50 = 30,144.05 : x
  2. Step 2: Convert to fraction form
    51,639.29/71,262.50 = 30,144.05/x
  3. Step 3: Cross multiply
    51,639.29x = 71,262.50 × 30,144.05
  4. Step 4: Simplify right side
    51,639.29x = 2,148,140,363.13
  5. Step 5: Solve for x
    x = 2,148,140,363.13/51,639.29
  6. Step 6: Final answer
    x = 41,598.95

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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.