Home / 56,486.44-77,952.01-30,991.19

Finding the Fourth Proportional to 56,486.44, 77,952.01 and 30,991.19

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Solution

The fourth proportional to 56,486.44, 77,952.01 and 30,991.19 is: 42,768.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,486.44 : 77,952.01 = 30,991.19 : x
  2. Step 2: Convert to fraction form
    56,486.44/77,952.01 = 30,991.19/x
  3. Step 3: Cross multiply
    56,486.44x = 77,952.01 × 30,991.19
  4. Step 4: Simplify right side
    56,486.44x = 2,415,825,085.55
  5. Step 5: Solve for x
    x = 2,415,825,085.55/56,486.44
  6. Step 6: Final answer
    x = 42,768.23

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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.