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Finding the Fourth Proportional to 63,689.54, 95,534.54 and 19,316.68

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Solution

The fourth proportional to 63,689.54, 95,534.54 and 19,316.68 is: 28,975.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,689.54 : 95,534.54 = 19,316.68 : x
  2. Step 2: Convert to fraction form
    63,689.54/95,534.54 = 19,316.68/x
  3. Step 3: Cross multiply
    63,689.54x = 95,534.54 × 19,316.68
  4. Step 4: Simplify right side
    63,689.54x = 1,845,409,875.15
  5. Step 5: Solve for x
    x = 1,845,409,875.15/63,689.54
  6. Step 6: Final answer
    x = 28,975.09

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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.