Home / 87,180.72-130,902.30-49,783.02

Finding the Fourth Proportional to 87,180.72, 130,902.30 and 49,783.02

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Solution

The fourth proportional to 87,180.72, 130,902.30 and 49,783.02 is: 74,749.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,180.72 : 130,902.30 = 49,783.02 : x
  2. Step 2: Convert to fraction form
    87,180.72/130,902.30 = 49,783.02/x
  3. Step 3: Cross multiply
    87,180.72x = 130,902.30 × 49,783.02
  4. Step 4: Simplify right side
    87,180.72x = 6,516,711,818.95
  5. Step 5: Solve for x
    x = 6,516,711,818.95/87,180.72
  6. Step 6: Final answer
    x = 74,749.46

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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.