Home / 87,001.65-120,056.60-51,184.74

Finding the Fourth Proportional to 87,001.65, 120,056.60 and 51,184.74

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Solution

The fourth proportional to 87,001.65, 120,056.60 and 51,184.74 is: 70,631.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,001.65 : 120,056.60 = 51,184.74 : x
  2. Step 2: Convert to fraction form
    87,001.65/120,056.60 = 51,184.74/x
  3. Step 3: Cross multiply
    87,001.65x = 120,056.60 × 51,184.74
  4. Step 4: Simplify right side
    87,001.65x = 6,145,065,600.36
  5. Step 5: Solve for x
    x = 6,145,065,600.36/87,001.65
  6. Step 6: Final answer
    x = 70,631.60

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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.