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Finding the Fourth Proportional to 64,237.32, 88,648.10 and 38,745

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Solution

The fourth proportional to 64,237.32, 88,648.10 and 38,745 is: 53,468.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,237.32 : 88,648.10 = 38,745 : x
  2. Step 2: Convert to fraction form
    64,237.32/88,648.10 = 38,745/x
  3. Step 3: Cross multiply
    64,237.32x = 88,648.10 × 38,745
  4. Step 4: Simplify right side
    64,237.32x = 3,434,670,634.50
  5. Step 5: Solve for x
    x = 3,434,670,634.50/64,237.32
  6. Step 6: Final answer
    x = 53,468.46

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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.