Home / 75,787.72-104,590.74-42,253

Finding the Fourth Proportional to 75,787.72, 104,590.74 and 42,253

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Solution

The fourth proportional to 75,787.72, 104,590.74 and 42,253 is: 58,311.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,787.72 : 104,590.74 = 42,253 : x
  2. Step 2: Convert to fraction form
    75,787.72/104,590.74 = 42,253/x
  3. Step 3: Cross multiply
    75,787.72x = 104,590.74 × 42,253
  4. Step 4: Simplify right side
    75,787.72x = 4,419,272,537.22
  5. Step 5: Solve for x
    x = 4,419,272,537.22/75,787.72
  6. Step 6: Final answer
    x = 58,311.20

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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.