Home / 51,512.21-77,279.42-15,972.81

Finding the Fourth Proportional to 51,512.21, 77,279.42 and 15,972.81

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Solution

The fourth proportional to 51,512.21, 77,279.42 and 15,972.81 is: 23,962.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,512.21 : 77,279.42 = 15,972.81 : x
  2. Step 2: Convert to fraction form
    51,512.21/77,279.42 = 15,972.81/x
  3. Step 3: Cross multiply
    51,512.21x = 77,279.42 × 15,972.81
  4. Step 4: Simplify right side
    51,512.21x = 1,234,369,712.49
  5. Step 5: Solve for x
    x = 1,234,369,712.49/51,512.21
  6. Step 6: Final answer
    x = 23,962.66

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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.