Home / 56,074.28-77,382.04-30,923.80

Finding the Fourth Proportional to 56,074.28, 77,382.04 and 30,923.80

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Solution

The fourth proportional to 56,074.28, 77,382.04 and 30,923.80 is: 42,674.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,074.28 : 77,382.04 = 30,923.80 : x
  2. Step 2: Convert to fraction form
    56,074.28/77,382.04 = 30,923.80/x
  3. Step 3: Cross multiply
    56,074.28x = 77,382.04 × 30,923.80
  4. Step 4: Simplify right side
    56,074.28x = 2,392,946,728.55
  5. Step 5: Solve for x
    x = 2,392,946,728.55/56,074.28
  6. Step 6: Final answer
    x = 42,674.59

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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.