Home / 56,564.06-78,056.26-31,415.18

Finding the Fourth Proportional to 56,564.06, 78,056.26 and 31,415.18

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Solution

The fourth proportional to 56,564.06, 78,056.26 and 31,415.18 is: 43,351.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,564.06 : 78,056.26 = 31,415.18 : x
  2. Step 2: Convert to fraction form
    56,564.06/78,056.26 = 31,415.18/x
  3. Step 3: Cross multiply
    56,564.06x = 78,056.26 × 31,415.18
  4. Step 4: Simplify right side
    56,564.06x = 2,452,150,989.21
  5. Step 5: Solve for x
    x = 2,452,150,989.21/56,564.06
  6. Step 6: Final answer
    x = 43,351.75

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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.