Home / 86,976.20-130,367.10-37,047.80

Finding the Fourth Proportional to 86,976.20, 130,367.10 and 37,047.80

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Solution

The fourth proportional to 86,976.20, 130,367.10 and 37,047.80 is: 55,530.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,976.20 : 130,367.10 = 37,047.80 : x
  2. Step 2: Convert to fraction form
    86,976.20/130,367.10 = 37,047.80/x
  3. Step 3: Cross multiply
    86,976.20x = 130,367.10 × 37,047.80
  4. Step 4: Simplify right side
    86,976.20x = 4,829,814,247.38
  5. Step 5: Solve for x
    x = 4,829,814,247.38/86,976.20
  6. Step 6: Final answer
    x = 55,530.30

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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.