Home / 57,016.47-78,680.41-31,521.22

Finding the Fourth Proportional to 57,016.47, 78,680.41 and 31,521.22

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Solution

The fourth proportional to 57,016.47, 78,680.41 and 31,521.22 is: 43,498.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,016.47 : 78,680.41 = 31,521.22 : x
  2. Step 2: Convert to fraction form
    57,016.47/78,680.41 = 31,521.22/x
  3. Step 3: Cross multiply
    57,016.47x = 78,680.41 × 31,521.22
  4. Step 4: Simplify right side
    57,016.47x = 2,480,102,415.10
  5. Step 5: Solve for x
    x = 2,480,102,415.10/57,016.47
  6. Step 6: Final answer
    x = 43,498.00

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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.