Home / 86,820.10-130,244.55-34,231.30

Finding the Fourth Proportional to 86,820.10, 130,244.55 and 34,231.30

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Solution

The fourth proportional to 86,820.10, 130,244.55 and 34,231.30 is: 51,352.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,820.10 : 130,244.55 = 34,231.30 : x
  2. Step 2: Convert to fraction form
    86,820.10/130,244.55 = 34,231.30/x
  3. Step 3: Cross multiply
    86,820.10x = 130,244.55 × 34,231.30
  4. Step 4: Simplify right side
    86,820.10x = 4,458,440,264.42
  5. Step 5: Solve for x
    x = 4,458,440,264.42/86,820.10
  6. Step 6: Final answer
    x = 51,352.63

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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.