Home / 55,258.16-76,256.43-31,385.03

Finding the Fourth Proportional to 55,258.16, 76,256.43 and 31,385.03

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Solution

The fourth proportional to 55,258.16, 76,256.43 and 31,385.03 is: 43,311.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,258.16 : 76,256.43 = 31,385.03 : x
  2. Step 2: Convert to fraction form
    55,258.16/76,256.43 = 31,385.03/x
  3. Step 3: Cross multiply
    55,258.16x = 76,256.43 × 31,385.03
  4. Step 4: Simplify right side
    55,258.16x = 2,393,310,343.24
  5. Step 5: Solve for x
    x = 2,393,310,343.24/55,258.16
  6. Step 6: Final answer
    x = 43,311.44

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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.