Home / 55,790.16-76,990.84-31,915.36

Finding the Fourth Proportional to 55,790.16, 76,990.84 and 31,915.36

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Solution

The fourth proportional to 55,790.16, 76,990.84 and 31,915.36 is: 44,043.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,790.16 : 76,990.84 = 31,915.36 : x
  2. Step 2: Convert to fraction form
    55,790.16/76,990.84 = 31,915.36/x
  3. Step 3: Cross multiply
    55,790.16x = 76,990.84 × 31,915.36
  4. Step 4: Simplify right side
    55,790.16x = 2,457,190,375.30
  5. Step 5: Solve for x
    x = 2,457,190,375.30/55,790.16
  6. Step 6: Final answer
    x = 44,043.44

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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.