Home / 89,234.74-133,809.40-51,805.15

Finding the Fourth Proportional to 89,234.74, 133,809.40 and 51,805.15

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Solution

The fourth proportional to 89,234.74, 133,809.40 and 51,805.15 is: 77,682.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,234.74 : 133,809.40 = 51,805.15 : x
  2. Step 2: Convert to fraction form
    89,234.74/133,809.40 = 51,805.15/x
  3. Step 3: Cross multiply
    89,234.74x = 133,809.40 × 51,805.15
  4. Step 4: Simplify right side
    89,234.74x = 6,932,016,038.41
  5. Step 5: Solve for x
    x = 6,932,016,038.41/89,234.74
  6. Step 6: Final answer
    x = 77,682.93

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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.