Home / 81,727.84-112,789.60-45,433.36

Finding the Fourth Proportional to 81,727.84, 112,789.60 and 45,433.36

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Solution

The fourth proportional to 81,727.84, 112,789.60 and 45,433.36 is: 62,700.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,727.84 : 112,789.60 = 45,433.36 : x
  2. Step 2: Convert to fraction form
    81,727.84/112,789.60 = 45,433.36/x
  3. Step 3: Cross multiply
    81,727.84x = 112,789.60 × 45,433.36
  4. Step 4: Simplify right side
    81,727.84x = 5,124,410,501.06
  5. Step 5: Solve for x
    x = 5,124,410,501.06/81,727.84
  6. Step 6: Final answer
    x = 62,700.92

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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.