Home / 77,439.08-106,862.82-45,609.32

Finding the Fourth Proportional to 77,439.08, 106,862.82 and 45,609.32

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Solution

The fourth proportional to 77,439.08, 106,862.82 and 45,609.32 is: 62,939.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,439.08 : 106,862.82 = 45,609.32 : x
  2. Step 2: Convert to fraction form
    77,439.08/106,862.82 = 45,609.32/x
  3. Step 3: Cross multiply
    77,439.08x = 106,862.82 × 45,609.32
  4. Step 4: Simplify right side
    77,439.08x = 4,873,940,553.48
  5. Step 5: Solve for x
    x = 4,873,940,553.48/77,439.08
  6. Step 6: Final answer
    x = 62,939.03

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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.