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Finding the Fourth Proportional to 63,121.95, 94,666.65 and 18,738.67

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Solution

The fourth proportional to 63,121.95, 94,666.65 and 18,738.67 is: 28,103.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,121.95 : 94,666.65 = 18,738.67 : x
  2. Step 2: Convert to fraction form
    63,121.95/94,666.65 = 18,738.67/x
  3. Step 3: Cross multiply
    63,121.95x = 94,666.65 × 18,738.67
  4. Step 4: Simplify right side
    63,121.95x = 1,773,927,114.36
  5. Step 5: Solve for x
    x = 1,773,927,114.36/63,121.95
  6. Step 6: Final answer
    x = 28,103.17

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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.