Home / 55,713.78-76,886.22-30,563.28

Finding the Fourth Proportional to 55,713.78, 76,886.22 and 30,563.28

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Solution

The fourth proportional to 55,713.78, 76,886.22 and 30,563.28 is: 42,177.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,713.78 : 76,886.22 = 30,563.28 : x
  2. Step 2: Convert to fraction form
    55,713.78/76,886.22 = 30,563.28/x
  3. Step 3: Cross multiply
    55,713.78x = 76,886.22 × 30,563.28
  4. Step 4: Simplify right side
    55,713.78x = 2,349,895,070.00
  5. Step 5: Solve for x
    x = 2,349,895,070.00/55,713.78
  6. Step 6: Final answer
    x = 42,177.99

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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.