Home / 71,934.84-99,240.78-47,747.16

Finding the Fourth Proportional to 71,934.84, 99,240.78 and 47,747.16

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Solution

The fourth proportional to 71,934.84, 99,240.78 and 47,747.16 is: 65,871.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,934.84 : 99,240.78 = 47,747.16 : x
  2. Step 2: Convert to fraction form
    71,934.84/99,240.78 = 47,747.16/x
  3. Step 3: Cross multiply
    71,934.84x = 99,240.78 × 47,747.16
  4. Step 4: Simplify right side
    71,934.84x = 4,738,465,401.18
  5. Step 5: Solve for x
    x = 4,738,465,401.18/71,934.84
  6. Step 6: Final answer
    x = 65,871.63

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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.