Home / 84,502.08-126,690.84-51,214.32

Finding the Fourth Proportional to 84,502.08, 126,690.84 and 51,214.32

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Solution

The fourth proportional to 84,502.08, 126,690.84 and 51,214.32 is: 76,783.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,502.08 : 126,690.84 = 51,214.32 : x
  2. Step 2: Convert to fraction form
    84,502.08/126,690.84 = 51,214.32/x
  3. Step 3: Cross multiply
    84,502.08x = 126,690.84 × 51,214.32
  4. Step 4: Simplify right side
    84,502.08x = 6,488,385,220.83
  5. Step 5: Solve for x
    x = 6,488,385,220.83/84,502.08
  6. Step 6: Final answer
    x = 76,783.73

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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.