Home / 48,665.81-67,124.25-31,638.65

Finding the Fourth Proportional to 48,665.81, 67,124.25 and 31,638.65

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Solution

The fourth proportional to 48,665.81, 67,124.25 and 31,638.65 is: 43,638.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,665.81 : 67,124.25 = 31,638.65 : x
  2. Step 2: Convert to fraction form
    48,665.81/67,124.25 = 31,638.65/x
  3. Step 3: Cross multiply
    48,665.81x = 67,124.25 × 31,638.65
  4. Step 4: Simplify right side
    48,665.81x = 2,123,720,652.26
  5. Step 5: Solve for x
    x = 2,123,720,652.26/48,665.81
  6. Step 6: Final answer
    x = 43,638.86

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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.