Home / 86,890.20-130,335.30-27,725.40

Finding the Fourth Proportional to 86,890.20, 130,335.30 and 27,725.40

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Solution

The fourth proportional to 86,890.20, 130,335.30 and 27,725.40 is: 41,588.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,890.20 : 130,335.30 = 27,725.40 : x
  2. Step 2: Convert to fraction form
    86,890.20/130,335.30 = 27,725.40/x
  3. Step 3: Cross multiply
    86,890.20x = 130,335.30 × 27,725.40
  4. Step 4: Simplify right side
    86,890.20x = 3,613,598,326.62
  5. Step 5: Solve for x
    x = 3,613,598,326.62/86,890.20
  6. Step 6: Final answer
    x = 41,588.10

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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.