Home / 86,741.17-130,016.11-56,742.96

Finding the Fourth Proportional to 86,741.17, 130,016.11 and 56,742.96

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Solution

The fourth proportional to 86,741.17, 130,016.11 and 56,742.96 is: 85,051.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,741.17 : 130,016.11 = 56,742.96 : x
  2. Step 2: Convert to fraction form
    86,741.17/130,016.11 = 56,742.96/x
  3. Step 3: Cross multiply
    86,741.17x = 130,016.11 × 56,742.96
  4. Step 4: Simplify right side
    86,741.17x = 7,377,497,995.29
  5. Step 5: Solve for x
    x = 7,377,497,995.29/86,741.17
  6. Step 6: Final answer
    x = 85,051.86

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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.