Home / 86,750.38-130,126.48-30,580.02

Finding the Fourth Proportional to 86,750.38, 130,126.48 and 30,580.02

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Solution

The fourth proportional to 86,750.38, 130,126.48 and 30,580.02 is: 45,870.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,750.38 : 130,126.48 = 30,580.02 : x
  2. Step 2: Convert to fraction form
    86,750.38/130,126.48 = 30,580.02/x
  3. Step 3: Cross multiply
    86,750.38x = 130,126.48 × 30,580.02
  4. Step 4: Simplify right side
    86,750.38x = 3,979,270,360.93
  5. Step 5: Solve for x
    x = 3,979,270,360.93/86,750.38
  6. Step 6: Final answer
    x = 45,870.35

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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.