Home / 56,112.96-77,430.42-30,960.84

Finding the Fourth Proportional to 56,112.96, 77,430.42 and 30,960.84

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Solution

The fourth proportional to 56,112.96, 77,430.42 and 30,960.84 is: 42,722.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,112.96 : 77,430.42 = 30,960.84 : x
  2. Step 2: Convert to fraction form
    56,112.96/77,430.42 = 30,960.84/x
  3. Step 3: Cross multiply
    56,112.96x = 77,430.42 × 30,960.84
  4. Step 4: Simplify right side
    56,112.96x = 2,397,310,844.75
  5. Step 5: Solve for x
    x = 2,397,310,844.75/56,112.96
  6. Step 6: Final answer
    x = 42,722.94

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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.