Home / 56,987.82-78,642.97-31,494.22

Finding the Fourth Proportional to 56,987.82, 78,642.97 and 31,494.22

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Solution

The fourth proportional to 56,987.82, 78,642.97 and 31,494.22 is: 43,461.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,987.82 : 78,642.97 = 31,494.22 : x
  2. Step 2: Convert to fraction form
    56,987.82/78,642.97 = 31,494.22/x
  3. Step 3: Cross multiply
    56,987.82x = 78,642.97 × 31,494.22
  4. Step 4: Simplify right side
    56,987.82x = 2,476,798,723.29
  5. Step 5: Solve for x
    x = 2,476,798,723.29/56,987.82
  6. Step 6: Final answer
    x = 43,461.90

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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.