Home / 57,640.58-86,490.27-38,881.30

Finding the Fourth Proportional to 57,640.58, 86,490.27 and 38,881.30

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Solution

The fourth proportional to 57,640.58, 86,490.27 and 38,881.30 is: 58,341.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,640.58 : 86,490.27 = 38,881.30 : x
  2. Step 2: Convert to fraction form
    57,640.58/86,490.27 = 38,881.30/x
  3. Step 3: Cross multiply
    57,640.58x = 86,490.27 × 38,881.30
  4. Step 4: Simplify right side
    57,640.58x = 3,362,854,117.44
  5. Step 5: Solve for x
    x = 3,362,854,117.44/57,640.58
  6. Step 6: Final answer
    x = 58,341.78

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.