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Finding the Fourth Proportional to 64,669.78, 89,230.91 and 37,807.08

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Solution

The fourth proportional to 64,669.78, 89,230.91 and 37,807.08 is: 52,165.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,669.78 : 89,230.91 = 37,807.08 : x
  2. Step 2: Convert to fraction form
    64,669.78/89,230.91 = 37,807.08/x
  3. Step 3: Cross multiply
    64,669.78x = 89,230.91 × 37,807.08
  4. Step 4: Simplify right side
    64,669.78x = 3,373,559,517.65
  5. Step 5: Solve for x
    x = 3,373,559,517.65/64,669.78
  6. Step 6: Final answer
    x = 52,165.93

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.