Home / 87,106.78-130,495.33-51,461.52

Finding the Fourth Proportional to 87,106.78, 130,495.33 and 51,461.52

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Solution

The fourth proportional to 87,106.78, 130,495.33 and 51,461.52 is: 77,094.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,106.78 : 130,495.33 = 51,461.52 : x
  2. Step 2: Convert to fraction form
    87,106.78/130,495.33 = 51,461.52/x
  3. Step 3: Cross multiply
    87,106.78x = 130,495.33 × 51,461.52
  4. Step 4: Simplify right side
    87,106.78x = 6,715,488,034.70
  5. Step 5: Solve for x
    x = 6,715,488,034.70/87,106.78
  6. Step 6: Final answer
    x = 77,094.89

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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.