Home / 87,014.64-130,323.72-51,881.76

Finding the Fourth Proportional to 87,014.64, 130,323.72 and 51,881.76

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Solution

The fourth proportional to 87,014.64, 130,323.72 and 51,881.76 is: 77,704.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,014.64 : 130,323.72 = 51,881.76 : x
  2. Step 2: Convert to fraction form
    87,014.64/130,323.72 = 51,881.76/x
  3. Step 3: Cross multiply
    87,014.64x = 130,323.72 × 51,881.76
  4. Step 4: Simplify right side
    87,014.64x = 6,761,423,963.35
  5. Step 5: Solve for x
    x = 6,761,423,963.35/87,014.64
  6. Step 6: Final answer
    x = 77,704.44

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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.