Home / 67,821.28-101,711.12-46,895.78

Finding the Fourth Proportional to 67,821.28, 101,711.12 and 46,895.78

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Solution

The fourth proportional to 67,821.28, 101,711.12 and 46,895.78 is: 70,329.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,821.28 : 101,711.12 = 46,895.78 : x
  2. Step 2: Convert to fraction form
    67,821.28/101,711.12 = 46,895.78/x
  3. Step 3: Cross multiply
    67,821.28x = 101,711.12 × 46,895.78
  4. Step 4: Simplify right side
    67,821.28x = 4,769,822,307.07
  5. Step 5: Solve for x
    x = 4,769,822,307.07/67,821.28
  6. Step 6: Final answer
    x = 70,329.29

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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.