Home / 57,070.39-78,759.46-31,576.34

Finding the Fourth Proportional to 57,070.39, 78,759.46 and 31,576.34

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Solution

The fourth proportional to 57,070.39, 78,759.46 and 31,576.34 is: 43,576.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,070.39 : 78,759.46 = 31,576.34 : x
  2. Step 2: Convert to fraction form
    57,070.39/78,759.46 = 31,576.34/x
  3. Step 3: Cross multiply
    57,070.39x = 78,759.46 × 31,576.34
  4. Step 4: Simplify right side
    57,070.39x = 2,486,935,487.18
  5. Step 5: Solve for x
    x = 2,486,935,487.18/57,070.39
  6. Step 6: Final answer
    x = 43,576.63

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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.