Home / 56,736.28-78,293-31,237.68

Finding the Fourth Proportional to 56,736.28, 78,293 and 31,237.68

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Solution

The fourth proportional to 56,736.28, 78,293 and 31,237.68 is: 43,106.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,736.28 : 78,293 = 31,237.68 : x
  2. Step 2: Convert to fraction form
    56,736.28/78,293 = 31,237.68/x
  3. Step 3: Cross multiply
    56,736.28x = 78,293 × 31,237.68
  4. Step 4: Simplify right side
    56,736.28x = 2,445,691,680.24
  5. Step 5: Solve for x
    x = 2,445,691,680.24/56,736.28
  6. Step 6: Final answer
    x = 43,106.31

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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.