Home / 80,930.64-111,676.32-45,117.30

Finding the Fourth Proportional to 80,930.64, 111,676.32 and 45,117.30

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Solution

The fourth proportional to 80,930.64, 111,676.32 and 45,117.30 is: 62,257.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,930.64 : 111,676.32 = 45,117.30 : x
  2. Step 2: Convert to fraction form
    80,930.64/111,676.32 = 45,117.30/x
  3. Step 3: Cross multiply
    80,930.64x = 111,676.32 × 45,117.30
  4. Step 4: Simplify right side
    80,930.64x = 5,038,534,032.34
  5. Step 5: Solve for x
    x = 5,038,534,032.34/80,930.64
  6. Step 6: Final answer
    x = 62,257.43

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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.