Home / 53,901.66-80,849.75-20,619.17

Finding the Fourth Proportional to 53,901.66, 80,849.75 and 20,619.17

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Solution

The fourth proportional to 53,901.66, 80,849.75 and 20,619.17 is: 30,927.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,901.66 : 80,849.75 = 20,619.17 : x
  2. Step 2: Convert to fraction form
    53,901.66/80,849.75 = 20,619.17/x
  3. Step 3: Cross multiply
    53,901.66x = 80,849.75 × 20,619.17
  4. Step 4: Simplify right side
    53,901.66x = 1,667,054,232.36
  5. Step 5: Solve for x
    x = 1,667,054,232.36/53,901.66
  6. Step 6: Final answer
    x = 30,927.70

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1.5x scale

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.