Home / 56,987.36-78,642.26-31,495.52

Finding the Fourth Proportional to 56,987.36, 78,642.26 and 31,495.52

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Solution

The fourth proportional to 56,987.36, 78,642.26 and 31,495.52 is: 43,463.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,987.36 : 78,642.26 = 31,495.52 : x
  2. Step 2: Convert to fraction form
    56,987.36/78,642.26 = 31,495.52/x
  3. Step 3: Cross multiply
    56,987.36x = 78,642.26 × 31,495.52
  4. Step 4: Simplify right side
    56,987.36x = 2,476,878,872.68
  5. Step 5: Solve for x
    x = 2,476,878,872.68/56,987.36
  6. Step 6: Final answer
    x = 43,463.65

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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.