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Finding the Fourth Proportional to 63,989.58, 88,305.02 and 35,309.50

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Solution

The fourth proportional to 63,989.58, 88,305.02 and 35,309.50 is: 48,726.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,989.58 : 88,305.02 = 35,309.50 : x
  2. Step 2: Convert to fraction form
    63,989.58/88,305.02 = 35,309.50/x
  3. Step 3: Cross multiply
    63,989.58x = 88,305.02 × 35,309.50
  4. Step 4: Simplify right side
    63,989.58x = 3,118,005,927.14
  5. Step 5: Solve for x
    x = 3,118,005,927.14/63,989.58
  6. Step 6: Final answer
    x = 48,726.78

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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.