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Finding the Fourth Proportional to 63,670.74, 87,881.40 and 36,828.78

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Solution

The fourth proportional to 63,670.74, 87,881.40 and 36,828.78 is: 50,832.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,670.74 : 87,881.40 = 36,828.78 : x
  2. Step 2: Convert to fraction form
    63,670.74/87,881.40 = 36,828.78/x
  3. Step 3: Cross multiply
    63,670.74x = 87,881.40 × 36,828.78
  4. Step 4: Simplify right side
    63,670.74x = 3,236,564,746.69
  5. Step 5: Solve for x
    x = 3,236,564,746.69/63,670.74
  6. Step 6: Final answer
    x = 50,832.84

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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.