Home / 56,122.41-77,449.38-30,628.98

Finding the Fourth Proportional to 56,122.41, 77,449.38 and 30,628.98

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Solution

The fourth proportional to 56,122.41, 77,449.38 and 30,628.98 is: 42,268.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,122.41 : 77,449.38 = 30,628.98 : x
  2. Step 2: Convert to fraction form
    56,122.41/77,449.38 = 30,628.98/x
  3. Step 3: Cross multiply
    56,122.41x = 77,449.38 × 30,628.98
  4. Step 4: Simplify right side
    56,122.41x = 2,372,195,511.03
  5. Step 5: Solve for x
    x = 2,372,195,511.03/56,122.41
  6. Step 6: Final answer
    x = 42,268.24

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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.