Home / 56,642.25-78,166.38-31,149.06

Finding the Fourth Proportional to 56,642.25, 78,166.38 and 31,149.06

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Solution

The fourth proportional to 56,642.25, 78,166.38 and 31,149.06 is: 42,985.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,642.25 : 78,166.38 = 31,149.06 : x
  2. Step 2: Convert to fraction form
    56,642.25/78,166.38 = 31,149.06/x
  3. Step 3: Cross multiply
    56,642.25x = 78,166.38 × 31,149.06
  4. Step 4: Simplify right side
    56,642.25x = 2,434,809,260.60
  5. Step 5: Solve for x
    x = 2,434,809,260.60/56,642.25
  6. Step 6: Final answer
    x = 42,985.74

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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.