Home / 81,436.68-112,437.54-50,856.48

Finding the Fourth Proportional to 81,436.68, 112,437.54 and 50,856.48

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Solution

The fourth proportional to 81,436.68, 112,437.54 and 50,856.48 is: 70,216.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,436.68 : 112,437.54 = 50,856.48 : x
  2. Step 2: Convert to fraction form
    81,436.68/112,437.54 = 50,856.48/x
  3. Step 3: Cross multiply
    81,436.68x = 112,437.54 × 50,856.48
  4. Step 4: Simplify right side
    81,436.68x = 5,718,177,504.26
  5. Step 5: Solve for x
    x = 5,718,177,504.26/81,436.68
  6. Step 6: Final answer
    x = 70,216.24

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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.