Home / 49,442.64-68,239.80-31,543.20

Finding the Fourth Proportional to 49,442.64, 68,239.80 and 31,543.20

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Solution

The fourth proportional to 49,442.64, 68,239.80 and 31,543.20 is: 43,535.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,442.64 : 68,239.80 = 31,543.20 : x
  2. Step 2: Convert to fraction form
    49,442.64/68,239.80 = 31,543.20/x
  3. Step 3: Cross multiply
    49,442.64x = 68,239.80 × 31,543.20
  4. Step 4: Simplify right side
    49,442.64x = 2,152,501,659.36
  5. Step 5: Solve for x
    x = 2,152,501,659.36/49,442.64
  6. Step 6: Final answer
    x = 43,535.33

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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.