Home / 86,548.20-129,725.10-36,619.80

Finding the Fourth Proportional to 86,548.20, 129,725.10 and 36,619.80

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Solution

The fourth proportional to 86,548.20, 129,725.10 and 36,619.80 is: 54,888.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,548.20 : 129,725.10 = 36,619.80 : x
  2. Step 2: Convert to fraction form
    86,548.20/129,725.10 = 36,619.80/x
  3. Step 3: Cross multiply
    86,548.20x = 129,725.10 × 36,619.80
  4. Step 4: Simplify right side
    86,548.20x = 4,750,507,216.98
  5. Step 5: Solve for x
    x = 4,750,507,216.98/86,548.20
  6. Step 6: Final answer
    x = 54,888.57

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1.5x scale

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.