Home / 108,011.12-162,009.48-51,891.44

Finding the Fourth Proportional to 108,011.12, 162,009.48 and 51,891.44

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Solution

The fourth proportional to 108,011.12, 162,009.48 and 51,891.44 is: 77,833.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,011.12 : 162,009.48 = 51,891.44 : x
  2. Step 2: Convert to fraction form
    108,011.12/162,009.48 = 51,891.44/x
  3. Step 3: Cross multiply
    108,011.12x = 162,009.48 × 51,891.44
  4. Step 4: Simplify right side
    108,011.12x = 8,406,905,210.85
  5. Step 5: Solve for x
    x = 8,406,905,210.85/108,011.12
  6. Step 6: Final answer
    x = 77,833.70

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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.