Home / 56,320.31-77,722.26-31,169.81

Finding the Fourth Proportional to 56,320.31, 77,722.26 and 31,169.81

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Solution

The fourth proportional to 56,320.31, 77,722.26 and 31,169.81 is: 43,014.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,320.31 : 77,722.26 = 31,169.81 : x
  2. Step 2: Convert to fraction form
    56,320.31/77,722.26 = 31,169.81/x
  3. Step 3: Cross multiply
    56,320.31x = 77,722.26 × 31,169.81
  4. Step 4: Simplify right side
    56,320.31x = 2,422,588,242.05
  5. Step 5: Solve for x
    x = 2,422,588,242.05/56,320.31
  6. Step 6: Final answer
    x = 43,014.47

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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.