Home / 57,102.12-78,801.03-31,610.25

Finding the Fourth Proportional to 57,102.12, 78,801.03 and 31,610.25

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Solution

The fourth proportional to 57,102.12, 78,801.03 and 31,610.25 is: 43,622.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,102.12 : 78,801.03 = 31,610.25 : x
  2. Step 2: Convert to fraction form
    57,102.12/78,801.03 = 31,610.25/x
  3. Step 3: Cross multiply
    57,102.12x = 78,801.03 × 31,610.25
  4. Step 4: Simplify right side
    57,102.12x = 2,490,920,258.56
  5. Step 5: Solve for x
    x = 2,490,920,258.56/57,102.12
  6. Step 6: Final answer
    x = 43,622.20

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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.