Home / 87,109.10-130,499.22-51,464.06

Finding the Fourth Proportional to 87,109.10, 130,499.22 and 51,464.06

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Solution

The fourth proportional to 87,109.10, 130,499.22 and 51,464.06 is: 77,098.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,109.10 : 130,499.22 = 51,464.06 : x
  2. Step 2: Convert to fraction form
    87,109.10/130,499.22 = 51,464.06/x
  3. Step 3: Cross multiply
    87,109.10x = 130,499.22 × 51,464.06
  4. Step 4: Simplify right side
    87,109.10x = 6,716,019,688.03
  5. Step 5: Solve for x
    x = 6,716,019,688.03/87,109.10
  6. Step 6: Final answer
    x = 77,098.94

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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.