Home / 64,728.15-96,952.02-31,378.45

Finding the Fourth Proportional to 64,728.15, 96,952.02 and 31,378.45

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Solution

The fourth proportional to 64,728.15, 96,952.02 and 31,378.45 is: 46,999.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,728.15 : 96,952.02 = 31,378.45 : x
  2. Step 2: Convert to fraction form
    64,728.15/96,952.02 = 31,378.45/x
  3. Step 3: Cross multiply
    64,728.15x = 96,952.02 × 31,378.45
  4. Step 4: Simplify right side
    64,728.15x = 3,042,204,111.97
  5. Step 5: Solve for x
    x = 3,042,204,111.97/64,728.15
  6. Step 6: Final answer
    x = 46,999.71

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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.