Home / 51,215.17-76,821.83-19,616.66

Finding the Fourth Proportional to 51,215.17, 76,821.83 and 19,616.66

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Solution

The fourth proportional to 51,215.17, 76,821.83 and 19,616.66 is: 29,424.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,215.17 : 76,821.83 = 19,616.66 : x
  2. Step 2: Convert to fraction form
    51,215.17/76,821.83 = 19,616.66/x
  3. Step 3: Cross multiply
    51,215.17x = 76,821.83 × 19,616.66
  4. Step 4: Simplify right side
    51,215.17x = 1,506,987,960.78
  5. Step 5: Solve for x
    x = 1,506,987,960.78/51,215.17
  6. Step 6: Final answer
    x = 29,424.64

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1.5x scale

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.