Home / 77,085.48-115,558.05-29,670.30

Finding the Fourth Proportional to 77,085.48, 115,558.05 and 29,670.30

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Solution

The fourth proportional to 77,085.48, 115,558.05 and 29,670.30 is: 44,478.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,085.48 : 115,558.05 = 29,670.30 : x
  2. Step 2: Convert to fraction form
    77,085.48/115,558.05 = 29,670.30/x
  3. Step 3: Cross multiply
    77,085.48x = 115,558.05 × 29,670.30
  4. Step 4: Simplify right side
    77,085.48x = 3,428,642,010.92
  5. Step 5: Solve for x
    x = 3,428,642,010.92/77,085.48
  6. Step 6: Final answer
    x = 44,478.44

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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.