Home / 55,785.55-76,981.76-30,290.92

Finding the Fourth Proportional to 55,785.55, 76,981.76 and 30,290.92

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Solution

The fourth proportional to 55,785.55, 76,981.76 and 30,290.92 is: 41,800.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,785.55 : 76,981.76 = 30,290.92 : x
  2. Step 2: Convert to fraction form
    55,785.55/76,981.76 = 30,290.92/x
  3. Step 3: Cross multiply
    55,785.55x = 76,981.76 × 30,290.92
  4. Step 4: Simplify right side
    55,785.55x = 2,331,848,333.62
  5. Step 5: Solve for x
    x = 2,331,848,333.62/55,785.55
  6. Step 6: Final answer
    x = 41,800.22

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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.