Home / 64,941.12-89,617.92-39,792

Finding the Fourth Proportional to 64,941.12, 89,617.92 and 39,792

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Solution

The fourth proportional to 64,941.12, 89,617.92 and 39,792 is: 54,912.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,941.12 : 89,617.92 = 39,792 : x
  2. Step 2: Convert to fraction form
    64,941.12/89,617.92 = 39,792/x
  3. Step 3: Cross multiply
    64,941.12x = 89,617.92 × 39,792
  4. Step 4: Simplify right side
    64,941.12x = 3,566,076,272.64
  5. Step 5: Solve for x
    x = 3,566,076,272.64/64,941.12
  6. Step 6: Final answer
    x = 54,912.45

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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.