Home / 56,537.44-78,022.56-31,387.20

Finding the Fourth Proportional to 56,537.44, 78,022.56 and 31,387.20

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Solution

The fourth proportional to 56,537.44, 78,022.56 and 31,387.20 is: 43,314.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,537.44 : 78,022.56 = 31,387.20 : x
  2. Step 2: Convert to fraction form
    56,537.44/78,022.56 = 31,387.20/x
  3. Step 3: Cross multiply
    56,537.44x = 78,022.56 × 31,387.20
  4. Step 4: Simplify right side
    56,537.44x = 2,448,909,695.23
  5. Step 5: Solve for x
    x = 2,448,909,695.23/56,537.44
  6. Step 6: Final answer
    x = 43,314.83

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1.5x scale

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.