Home / 56,785.43-78,362.84-31,294.06

Finding the Fourth Proportional to 56,785.43, 78,362.84 and 31,294.06

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Solution

The fourth proportional to 56,785.43, 78,362.84 and 31,294.06 is: 43,185.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,785.43 : 78,362.84 = 31,294.06 : x
  2. Step 2: Convert to fraction form
    56,785.43/78,362.84 = 31,294.06/x
  3. Step 3: Cross multiply
    56,785.43x = 78,362.84 × 31,294.06
  4. Step 4: Simplify right side
    56,785.43x = 2,452,291,409.26
  5. Step 5: Solve for x
    x = 2,452,291,409.26/56,785.43
  6. Step 6: Final answer
    x = 43,185.22

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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.