Home / 56,721.03-78,274.26-31,570.53

Finding the Fourth Proportional to 56,721.03, 78,274.26 and 31,570.53

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Solution

The fourth proportional to 56,721.03, 78,274.26 and 31,570.53 is: 43,566.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,721.03 : 78,274.26 = 31,570.53 : x
  2. Step 2: Convert to fraction form
    56,721.03/78,274.26 = 31,570.53/x
  3. Step 3: Cross multiply
    56,721.03x = 78,274.26 × 31,570.53
  4. Step 4: Simplify right side
    56,721.03x = 2,471,159,873.56
  5. Step 5: Solve for x
    x = 2,471,159,873.56/56,721.03
  6. Step 6: Final answer
    x = 43,566.91

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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.