Home / 89,238.83-133,815.18-51,808.32

Finding the Fourth Proportional to 89,238.83, 133,815.18 and 51,808.32

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Solution

The fourth proportional to 89,238.83, 133,815.18 and 51,808.32 is: 77,687.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,238.83 : 133,815.18 = 51,808.32 : x
  2. Step 2: Convert to fraction form
    89,238.83/133,815.18 = 51,808.32/x
  3. Step 3: Cross multiply
    89,238.83x = 133,815.18 × 51,808.32
  4. Step 4: Simplify right side
    89,238.83x = 6,932,739,666.30
  5. Step 5: Solve for x
    x = 6,932,739,666.30/89,238.83
  6. Step 6: Final answer
    x = 77,687.48

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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.