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Finding the Fourth Proportional to 63,355.95, 95,037.08 and 18,978.47

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Solution

The fourth proportional to 63,355.95, 95,037.08 and 18,978.47 is: 28,468.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,355.95 : 95,037.08 = 18,978.47 : x
  2. Step 2: Convert to fraction form
    63,355.95/95,037.08 = 18,978.47/x
  3. Step 3: Cross multiply
    63,355.95x = 95,037.08 × 18,978.47
  4. Step 4: Simplify right side
    63,355.95x = 1,803,658,371.67
  5. Step 5: Solve for x
    x = 1,803,658,371.67/63,355.95
  6. Step 6: Final answer
    x = 28,468.65

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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.