Home / 49,628.28-68,459.50-31,445.60

Finding the Fourth Proportional to 49,628.28, 68,459.50 and 31,445.60

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Solution

The fourth proportional to 49,628.28, 68,459.50 and 31,445.60 is: 43,377.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,628.28 : 68,459.50 = 31,445.60 : x
  2. Step 2: Convert to fraction form
    49,628.28/68,459.50 = 31,445.60/x
  3. Step 3: Cross multiply
    49,628.28x = 68,459.50 × 31,445.60
  4. Step 4: Simplify right side
    49,628.28x = 2,152,750,053.20
  5. Step 5: Solve for x
    x = 2,152,750,053.20/49,628.28
  6. Step 6: Final answer
    x = 43,377.49

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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.