Home / 57,017.21-78,680.36-31,522.05

Finding the Fourth Proportional to 57,017.21, 78,680.36 and 31,522.05

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Solution

The fourth proportional to 57,017.21, 78,680.36 and 31,522.05 is: 43,498.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,017.21 : 78,680.36 = 31,522.05 : x
  2. Step 2: Convert to fraction form
    57,017.21/78,680.36 = 31,522.05/x
  3. Step 3: Cross multiply
    57,017.21x = 78,680.36 × 31,522.05
  4. Step 4: Simplify right side
    57,017.21x = 2,480,166,320.74
  5. Step 5: Solve for x
    x = 2,480,166,320.74/57,017.21
  6. Step 6: Final answer
    x = 43,498.56

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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.