Home / 72,232.80-99,674.28-42,016.56

Finding the Fourth Proportional to 72,232.80, 99,674.28 and 42,016.56

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Solution

The fourth proportional to 72,232.80, 99,674.28 and 42,016.56 is: 57,978.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,232.80 : 99,674.28 = 42,016.56 : x
  2. Step 2: Convert to fraction form
    72,232.80/99,674.28 = 42,016.56/x
  3. Step 3: Cross multiply
    72,232.80x = 99,674.28 × 42,016.56
  4. Step 4: Simplify right side
    72,232.80x = 4,187,970,366.08
  5. Step 5: Solve for x
    x = 4,187,970,366.08/72,232.80
  6. Step 6: Final answer
    x = 57,978.79

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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.