Home / 57,016.29-78,679.08-31,521.12

Finding the Fourth Proportional to 57,016.29, 78,679.08 and 31,521.12

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Solution

The fourth proportional to 57,016.29, 78,679.08 and 31,521.12 is: 43,497.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,016.29 : 78,679.08 = 31,521.12 : x
  2. Step 2: Convert to fraction form
    57,016.29/78,679.08 = 31,521.12/x
  3. Step 3: Cross multiply
    57,016.29x = 78,679.08 × 31,521.12
  4. Step 4: Simplify right side
    57,016.29x = 2,480,052,722.17
  5. Step 5: Solve for x
    x = 2,480,052,722.17/57,016.29
  6. Step 6: Final answer
    x = 43,497.27

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1.5x scale

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.