Home / 80,972.28-111,736.94-46,978.11

Finding the Fourth Proportional to 80,972.28, 111,736.94 and 46,978.11

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Solution

The fourth proportional to 80,972.28, 111,736.94 and 46,978.11 is: 64,827.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,972.28 : 111,736.94 = 46,978.11 : x
  2. Step 2: Convert to fraction form
    80,972.28/111,736.94 = 46,978.11/x
  3. Step 3: Cross multiply
    80,972.28x = 111,736.94 × 46,978.11
  4. Step 4: Simplify right side
    80,972.28x = 5,249,190,023.49
  5. Step 5: Solve for x
    x = 5,249,190,023.49/80,972.28
  6. Step 6: Final answer
    x = 64,827.00

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1.5x scale

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.