Home / 86,854.12-130,185.60-56,832.28

Finding the Fourth Proportional to 86,854.12, 130,185.60 and 56,832.28

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Solution

The fourth proportional to 86,854.12, 130,185.60 and 56,832.28 is: 85,185.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,854.12 : 130,185.60 = 56,832.28 : x
  2. Step 2: Convert to fraction form
    86,854.12/130,185.60 = 56,832.28/x
  3. Step 3: Cross multiply
    86,854.12x = 130,185.60 × 56,832.28
  4. Step 4: Simplify right side
    86,854.12x = 7,398,744,471.17
  5. Step 5: Solve for x
    x = 7,398,744,471.17/86,854.12
  6. Step 6: Final answer
    x = 85,185.88

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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.