Home / 51,720.57-77,579.28-14,282.91

Finding the Fourth Proportional to 51,720.57, 77,579.28 and 14,282.91

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Solution

The fourth proportional to 51,720.57, 77,579.28 and 14,282.91 is: 21,423.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,720.57 : 77,579.28 = 14,282.91 : x
  2. Step 2: Convert to fraction form
    51,720.57/77,579.28 = 14,282.91/x
  3. Step 3: Cross multiply
    51,720.57x = 77,579.28 × 14,282.91
  4. Step 4: Simplify right side
    51,720.57x = 1,108,057,874.10
  5. Step 5: Solve for x
    x = 1,108,057,874.10/51,720.57
  6. Step 6: Final answer
    x = 21,423.93

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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.