Home / 55,279.91-76,288.34-31,410.63

Finding the Fourth Proportional to 55,279.91, 76,288.34 and 31,410.63

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Solution

The fourth proportional to 55,279.91, 76,288.34 and 31,410.63 is: 43,347.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,279.91 : 76,288.34 = 31,410.63 : x
  2. Step 2: Convert to fraction form
    55,279.91/76,288.34 = 31,410.63/x
  3. Step 3: Cross multiply
    55,279.91x = 76,288.34 × 31,410.63
  4. Step 4: Simplify right side
    55,279.91x = 2,396,264,664.00
  5. Step 5: Solve for x
    x = 2,396,264,664.00/55,279.91
  6. Step 6: Final answer
    x = 43,347.84

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.