Home / 77,156.34-115,743.77-27,226.13

Finding the Fourth Proportional to 77,156.34, 115,743.77 and 27,226.13

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Solution

The fourth proportional to 77,156.34, 115,743.77 and 27,226.13 is: 40,842.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,156.34 : 115,743.77 = 27,226.13 : x
  2. Step 2: Convert to fraction form
    77,156.34/115,743.77 = 27,226.13/x
  3. Step 3: Cross multiply
    77,156.34x = 115,743.77 × 27,226.13
  4. Step 4: Simplify right side
    77,156.34x = 3,151,254,213.86
  5. Step 5: Solve for x
    x = 3,151,254,213.86/77,156.34
  6. Step 6: Final answer
    x = 40,842.45

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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.