Home / 86,836.20-130,205.70-36,907.80

Finding the Fourth Proportional to 86,836.20, 130,205.70 and 36,907.80

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Solution

The fourth proportional to 86,836.20, 130,205.70 and 36,907.80 is: 55,341.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,836.20 : 130,205.70 = 36,907.80 : x
  2. Step 2: Convert to fraction form
    86,836.20/130,205.70 = 36,907.80/x
  3. Step 3: Cross multiply
    86,836.20x = 130,205.70 × 36,907.80
  4. Step 4: Simplify right side
    86,836.20x = 4,805,605,934.46
  5. Step 5: Solve for x
    x = 4,805,605,934.46/86,836.20
  6. Step 6: Final answer
    x = 55,341.04

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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.