Home / 56,321.68-77,723.28-30,827.98

Finding the Fourth Proportional to 56,321.68, 77,723.28 and 30,827.98

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Solution

The fourth proportional to 56,321.68, 77,723.28 and 30,827.98 is: 42,542.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,321.68 : 77,723.28 = 30,827.98 : x
  2. Step 2: Convert to fraction form
    56,321.68/77,723.28 = 30,827.98/x
  3. Step 3: Cross multiply
    56,321.68x = 77,723.28 × 30,827.98
  4. Step 4: Simplify right side
    56,321.68x = 2,396,051,721.37
  5. Step 5: Solve for x
    x = 2,396,051,721.37/56,321.68
  6. Step 6: Final answer
    x = 42,542.26

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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.