Home / 86,805.16-130,207.36-36,877.60

Finding the Fourth Proportional to 86,805.16, 130,207.36 and 36,877.60

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Solution

The fourth proportional to 86,805.16, 130,207.36 and 36,877.60 is: 55,316.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,805.16 : 130,207.36 = 36,877.60 : x
  2. Step 2: Convert to fraction form
    86,805.16/130,207.36 = 36,877.60/x
  3. Step 3: Cross multiply
    86,805.16x = 130,207.36 × 36,877.60
  4. Step 4: Simplify right side
    86,805.16x = 4,801,734,939.14
  5. Step 5: Solve for x
    x = 4,801,734,939.14/86,805.16
  6. Step 6: Final answer
    x = 55,316.24

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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.