Home / 55,915.77-77,162.96-30,422.37

Finding the Fourth Proportional to 55,915.77, 77,162.96 and 30,422.37

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Solution

The fourth proportional to 55,915.77, 77,162.96 and 30,422.37 is: 41,982.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,915.77 : 77,162.96 = 30,422.37 : x
  2. Step 2: Convert to fraction form
    55,915.77/77,162.96 = 30,422.37/x
  3. Step 3: Cross multiply
    55,915.77x = 77,162.96 × 30,422.37
  4. Step 4: Simplify right side
    55,915.77x = 2,347,479,967.30
  5. Step 5: Solve for x
    x = 2,347,479,967.30/55,915.77
  6. Step 6: Final answer
    x = 41,982.43

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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.