Home / 87,281.07-120,461.56-51,475.02

Finding the Fourth Proportional to 87,281.07, 120,461.56 and 51,475.02

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Solution

The fourth proportional to 87,281.07, 120,461.56 and 51,475.02 is: 71,043.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,281.07 : 120,461.56 = 51,475.02 : x
  2. Step 2: Convert to fraction form
    87,281.07/120,461.56 = 51,475.02/x
  3. Step 3: Cross multiply
    87,281.07x = 120,461.56 × 51,475.02
  4. Step 4: Simplify right side
    87,281.07x = 6,200,761,081.54
  5. Step 5: Solve for x
    x = 6,200,761,081.54/87,281.07
  6. Step 6: Final answer
    x = 71,043.60

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.