Home / 84,814.08-127,162.56-56,743.68

Finding the Fourth Proportional to 84,814.08, 127,162.56 and 56,743.68

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Solution

The fourth proportional to 84,814.08, 127,162.56 and 56,743.68 is: 85,076.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,814.08 : 127,162.56 = 56,743.68 : x
  2. Step 2: Convert to fraction form
    84,814.08/127,162.56 = 56,743.68/x
  3. Step 3: Cross multiply
    84,814.08x = 127,162.56 × 56,743.68
  4. Step 4: Simplify right side
    84,814.08x = 7,215,671,612.62
  5. Step 5: Solve for x
    x = 7,215,671,612.62/84,814.08
  6. Step 6: Final answer
    x = 85,076.34

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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.