Home / 85,027.19-127,590.06-42,910.56

Finding the Fourth Proportional to 85,027.19, 127,590.06 and 42,910.56

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Solution

The fourth proportional to 85,027.19, 127,590.06 and 42,910.56 is: 64,390.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,027.19 : 127,590.06 = 42,910.56 : x
  2. Step 2: Convert to fraction form
    85,027.19/127,590.06 = 42,910.56/x
  3. Step 3: Cross multiply
    85,027.19x = 127,590.06 × 42,910.56
  4. Step 4: Simplify right side
    85,027.19x = 5,474,961,085.95
  5. Step 5: Solve for x
    x = 5,474,961,085.95/85,027.19
  6. Step 6: Final answer
    x = 64,390.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.