Home / 86,750.39-130,126.50-30,580.02

Finding the Fourth Proportional to 86,750.39, 130,126.50 and 30,580.02

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Solution

The fourth proportional to 86,750.39, 130,126.50 and 30,580.02 is: 45,870.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,750.39 : 130,126.50 = 30,580.02 : x
  2. Step 2: Convert to fraction form
    86,750.39/130,126.50 = 30,580.02/x
  3. Step 3: Cross multiply
    86,750.39x = 130,126.50 × 30,580.02
  4. Step 4: Simplify right side
    86,750.39x = 3,979,270,972.53
  5. Step 5: Solve for x
    x = 3,979,270,972.53/86,750.39
  6. Step 6: Final answer
    x = 45,870.36

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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.