Home / 55,667.64-76,823.10-30,519.48

Finding the Fourth Proportional to 55,667.64, 76,823.10 and 30,519.48

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Solution

The fourth proportional to 55,667.64, 76,823.10 and 30,519.48 is: 42,117.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,667.64 : 76,823.10 = 30,519.48 : x
  2. Step 2: Convert to fraction form
    55,667.64/76,823.10 = 30,519.48/x
  3. Step 3: Cross multiply
    55,667.64x = 76,823.10 × 30,519.48
  4. Step 4: Simplify right side
    55,667.64x = 2,344,601,063.99
  5. Step 5: Solve for x
    x = 2,344,601,063.99/55,667.64
  6. Step 6: Final answer
    x = 42,117.85

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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.