Home / 78,006.19-107,648.46-42,196.11

Finding the Fourth Proportional to 78,006.19, 107,648.46 and 42,196.11

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Solution

The fourth proportional to 78,006.19, 107,648.46 and 42,196.11 is: 58,230.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,006.19 : 107,648.46 = 42,196.11 : x
  2. Step 2: Convert to fraction form
    78,006.19/107,648.46 = 42,196.11/x
  3. Step 3: Cross multiply
    78,006.19x = 107,648.46 × 42,196.11
  4. Step 4: Simplify right side
    78,006.19x = 4,542,346,342.65
  5. Step 5: Solve for x
    x = 4,542,346,342.65/78,006.19
  6. Step 6: Final answer
    x = 58,230.59

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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.