Home / 81,264.63-112,157.16-49,427.37

Finding the Fourth Proportional to 81,264.63, 112,157.16 and 49,427.37

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Solution

The fourth proportional to 81,264.63, 112,157.16 and 49,427.37 is: 68,217.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,264.63 : 112,157.16 = 49,427.37 : x
  2. Step 2: Convert to fraction form
    81,264.63/112,157.16 = 49,427.37/x
  3. Step 3: Cross multiply
    81,264.63x = 112,157.16 × 49,427.37
  4. Step 4: Simplify right side
    81,264.63x = 5,543,633,445.47
  5. Step 5: Solve for x
    x = 5,543,633,445.47/81,264.63
  6. Step 6: Final answer
    x = 68,217.05

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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.