Home / 55,773.96-76,967.52-30,279.78

Finding the Fourth Proportional to 55,773.96, 76,967.52 and 30,279.78

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Solution

The fourth proportional to 55,773.96, 76,967.52 and 30,279.78 is: 41,785.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,773.96 : 76,967.52 = 30,279.78 : x
  2. Step 2: Convert to fraction form
    55,773.96/76,967.52 = 30,279.78/x
  3. Step 3: Cross multiply
    55,773.96x = 76,967.52 × 30,279.78
  4. Step 4: Simplify right side
    55,773.96x = 2,330,559,572.75
  5. Step 5: Solve for x
    x = 2,330,559,572.75/55,773.96
  6. Step 6: Final answer
    x = 41,785.80

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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.