Home / 90,974.25-125,545.28-53,249.31

Finding the Fourth Proportional to 90,974.25, 125,545.28 and 53,249.31

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Solution

The fourth proportional to 90,974.25, 125,545.28 and 53,249.31 is: 73,484.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,974.25 : 125,545.28 = 53,249.31 : x
  2. Step 2: Convert to fraction form
    90,974.25/125,545.28 = 53,249.31/x
  3. Step 3: Cross multiply
    90,974.25x = 125,545.28 × 53,249.31
  4. Step 4: Simplify right side
    90,974.25x = 6,685,199,267.51
  5. Step 5: Solve for x
    x = 6,685,199,267.51/90,974.25
  6. Step 6: Final answer
    x = 73,484.52

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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.