Home / 56,509.44-77,989.68-31,360.56

Finding the Fourth Proportional to 56,509.44, 77,989.68 and 31,360.56

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Solution

The fourth proportional to 56,509.44, 77,989.68 and 31,360.56 is: 43,281.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,509.44 : 77,989.68 = 31,360.56 : x
  2. Step 2: Convert to fraction form
    56,509.44/77,989.68 = 31,360.56/x
  3. Step 3: Cross multiply
    56,509.44x = 77,989.68 × 31,360.56
  4. Step 4: Simplify right side
    56,509.44x = 2,445,800,039.02
  5. Step 5: Solve for x
    x = 2,445,800,039.02/56,509.44
  6. Step 6: Final answer
    x = 43,281.26

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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.