Home / 86,808.38-130,212.43-57,010.74

Finding the Fourth Proportional to 86,808.38, 130,212.43 and 57,010.74

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Solution

The fourth proportional to 86,808.38, 130,212.43 and 57,010.74 is: 85,516.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,808.38 : 130,212.43 = 57,010.74 : x
  2. Step 2: Convert to fraction form
    86,808.38/130,212.43 = 57,010.74/x
  3. Step 3: Cross multiply
    86,808.38x = 130,212.43 × 57,010.74
  4. Step 4: Simplify right side
    86,808.38x = 7,423,506,360.67
  5. Step 5: Solve for x
    x = 7,423,506,360.67/86,808.38
  6. Step 6: Final answer
    x = 85,516.02

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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.