Home / 81,533.28-112,517.07-49,263.40

Finding the Fourth Proportional to 81,533.28, 112,517.07 and 49,263.40

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Solution

The fourth proportional to 81,533.28, 112,517.07 and 49,263.40 is: 67,984.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,533.28 : 112,517.07 = 49,263.40 : x
  2. Step 2: Convert to fraction form
    81,533.28/112,517.07 = 49,263.40/x
  3. Step 3: Cross multiply
    81,533.28x = 112,517.07 × 49,263.40
  4. Step 4: Simplify right side
    81,533.28x = 5,542,973,426.24
  5. Step 5: Solve for x
    x = 5,542,973,426.24/81,533.28
  6. Step 6: Final answer
    x = 67,984.18

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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.