Home / 55,666.66-76,819.88-30,516.34

Finding the Fourth Proportional to 55,666.66, 76,819.88 and 30,516.34

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Solution

The fourth proportional to 55,666.66, 76,819.88 and 30,516.34 is: 42,112.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,666.66 : 76,819.88 = 30,516.34 : x
  2. Step 2: Convert to fraction form
    55,666.66/76,819.88 = 30,516.34/x
  3. Step 3: Cross multiply
    55,666.66x = 76,819.88 × 30,516.34
  4. Step 4: Simplify right side
    55,666.66x = 2,344,261,576.84
  5. Step 5: Solve for x
    x = 2,344,261,576.84/55,666.66
  6. Step 6: Final answer
    x = 42,112.49

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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.