Home / 86,938.20-130,310.10-37,009.80

Finding the Fourth Proportional to 86,938.20, 130,310.10 and 37,009.80

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Solution

The fourth proportional to 86,938.20, 130,310.10 and 37,009.80 is: 55,473.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,938.20 : 130,310.10 = 37,009.80 : x
  2. Step 2: Convert to fraction form
    86,938.20/130,310.10 = 37,009.80/x
  3. Step 3: Cross multiply
    86,938.20x = 130,310.10 × 37,009.80
  4. Step 4: Simplify right side
    86,938.20x = 4,822,750,738.98
  5. Step 5: Solve for x
    x = 4,822,750,738.98/86,938.20
  6. Step 6: Final answer
    x = 55,473.32

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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.