Home / 48,156.75-66,456.32-31,389.75

Finding the Fourth Proportional to 48,156.75, 66,456.32 and 31,389.75

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Solution

The fourth proportional to 48,156.75, 66,456.32 and 31,389.75 is: 43,317.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,156.75 : 66,456.32 = 31,389.75 : x
  2. Step 2: Convert to fraction form
    48,156.75/66,456.32 = 31,389.75/x
  3. Step 3: Cross multiply
    48,156.75x = 66,456.32 × 31,389.75
  4. Step 4: Simplify right side
    48,156.75x = 2,086,047,113.77
  5. Step 5: Solve for x
    x = 2,086,047,113.77/48,156.75
  6. Step 6: Final answer
    x = 43,317.86

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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.