Home / 55,012.32-75,910.70-30,809.92

Finding the Fourth Proportional to 55,012.32, 75,910.70 and 30,809.92

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Solution

The fourth proportional to 55,012.32, 75,910.70 and 30,809.92 is: 42,514.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,012.32 : 75,910.70 = 30,809.92 : x
  2. Step 2: Convert to fraction form
    55,012.32/75,910.70 = 30,809.92/x
  3. Step 3: Cross multiply
    55,012.32x = 75,910.70 × 30,809.92
  4. Step 4: Simplify right side
    55,012.32x = 2,338,802,594.14
  5. Step 5: Solve for x
    x = 2,338,802,594.14/55,012.32
  6. Step 6: Final answer
    x = 42,514.16

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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.