Home / 56,722.53-78,277.07-31,577.97

Finding the Fourth Proportional to 56,722.53, 78,277.07 and 31,577.97

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Solution

The fourth proportional to 56,722.53, 78,277.07 and 31,577.97 is: 43,577.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,722.53 : 78,277.07 = 31,577.97 : x
  2. Step 2: Convert to fraction form
    56,722.53/78,277.07 = 31,577.97/x
  3. Step 3: Cross multiply
    56,722.53x = 78,277.07 × 31,577.97
  4. Step 4: Simplify right side
    56,722.53x = 2,471,830,810.26
  5. Step 5: Solve for x
    x = 2,471,830,810.26/56,722.53
  6. Step 6: Final answer
    x = 43,577.58

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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.