Home / 56,121.66-77,448.35-30,628.23

Finding the Fourth Proportional to 56,121.66, 77,448.35 and 30,628.23

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Solution

The fourth proportional to 56,121.66, 77,448.35 and 30,628.23 is: 42,267.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,121.66 : 77,448.35 = 30,628.23 : x
  2. Step 2: Convert to fraction form
    56,121.66/77,448.35 = 30,628.23/x
  3. Step 3: Cross multiply
    56,121.66x = 77,448.35 × 30,628.23
  4. Step 4: Simplify right side
    56,121.66x = 2,372,105,723.78
  5. Step 5: Solve for x
    x = 2,372,105,723.78/56,121.66
  6. Step 6: Final answer
    x = 42,267.21

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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.