Home / 42,121.96-63,138.54-14,034.52

Finding the Fourth Proportional to 42,121.96, 63,138.54 and 14,034.52

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Solution

The fourth proportional to 42,121.96, 63,138.54 and 14,034.52 is: 21,036.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,121.96 : 63,138.54 = 14,034.52 : x
  2. Step 2: Convert to fraction form
    42,121.96/63,138.54 = 14,034.52/x
  3. Step 3: Cross multiply
    42,121.96x = 63,138.54 × 14,034.52
  4. Step 4: Simplify right side
    42,121.96x = 886,119,102.40
  5. Step 5: Solve for x
    x = 886,119,102.40/42,121.96
  6. Step 6: Final answer
    x = 21,036.99

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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.