Home / 64,478.78-96,703.05-31,182.38

Finding the Fourth Proportional to 64,478.78, 96,703.05 and 31,182.38

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Solution

The fourth proportional to 64,478.78, 96,703.05 and 31,182.38 is: 46,766.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,478.78 : 96,703.05 = 31,182.38 : x
  2. Step 2: Convert to fraction form
    64,478.78/96,703.05 = 31,182.38/x
  3. Step 3: Cross multiply
    64,478.78x = 96,703.05 × 31,182.38
  4. Step 4: Simplify right side
    64,478.78x = 3,015,431,252.26
  5. Step 5: Solve for x
    x = 3,015,431,252.26/64,478.78
  6. Step 6: Final answer
    x = 46,766.26

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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.