Home / 55,456.12-76,529.64-30,306.16

Finding the Fourth Proportional to 55,456.12, 76,529.64 and 30,306.16

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Solution

The fourth proportional to 55,456.12, 76,529.64 and 30,306.16 is: 41,822.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,456.12 : 76,529.64 = 30,306.16 : x
  2. Step 2: Convert to fraction form
    55,456.12/76,529.64 = 30,306.16/x
  3. Step 3: Cross multiply
    55,456.12x = 76,529.64 × 30,306.16
  4. Step 4: Simplify right side
    55,456.12x = 2,319,319,514.58
  5. Step 5: Solve for x
    x = 2,319,319,514.58/55,456.12
  6. Step 6: Final answer
    x = 41,822.61

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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.