Home / 43,310.75-64,966.13-10,478.75

Finding the Fourth Proportional to 43,310.75, 64,966.13 and 10,478.75

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Solution

The fourth proportional to 43,310.75, 64,966.13 and 10,478.75 is: 15,718.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,310.75 : 64,966.13 = 10,478.75 : x
  2. Step 2: Convert to fraction form
    43,310.75/64,966.13 = 10,478.75/x
  3. Step 3: Cross multiply
    43,310.75x = 64,966.13 × 10,478.75
  4. Step 4: Simplify right side
    43,310.75x = 680,763,834.74
  5. Step 5: Solve for x
    x = 680,763,834.74/43,310.75
  6. Step 6: Final answer
    x = 15,718.13

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.