Home / 56,576.76-78,078.40-31,426.26

Finding the Fourth Proportional to 56,576.76, 78,078.40 and 31,426.26

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Solution

The fourth proportional to 56,576.76, 78,078.40 and 31,426.26 is: 43,369.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,576.76 : 78,078.40 = 31,426.26 : x
  2. Step 2: Convert to fraction form
    56,576.76/78,078.40 = 31,426.26/x
  3. Step 3: Cross multiply
    56,576.76x = 78,078.40 × 31,426.26
  4. Step 4: Simplify right side
    56,576.76x = 2,453,712,098.78
  5. Step 5: Solve for x
    x = 2,453,712,098.78/56,576.76
  6. Step 6: Final answer
    x = 43,369.61

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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.