Home / 76,921.68-106,162.38-45,103.26

Finding the Fourth Proportional to 76,921.68, 106,162.38 and 45,103.26

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Solution

The fourth proportional to 76,921.68, 106,162.38 and 45,103.26 is: 62,248.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,921.68 : 106,162.38 = 45,103.26 : x
  2. Step 2: Convert to fraction form
    76,921.68/106,162.38 = 45,103.26/x
  3. Step 3: Cross multiply
    76,921.68x = 106,162.38 × 45,103.26
  4. Step 4: Simplify right side
    76,921.68x = 4,788,269,427.36
  5. Step 5: Solve for x
    x = 4,788,269,427.36/76,921.68
  6. Step 6: Final answer
    x = 62,248.63

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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.