Home / 78,215.32-107,930.50-44,219.09

Finding the Fourth Proportional to 78,215.32, 107,930.50 and 44,219.09

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Solution

The fourth proportional to 78,215.32, 107,930.50 and 44,219.09 is: 61,018.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,215.32 : 107,930.50 = 44,219.09 : x
  2. Step 2: Convert to fraction form
    78,215.32/107,930.50 = 44,219.09/x
  3. Step 3: Cross multiply
    78,215.32x = 107,930.50 × 44,219.09
  4. Step 4: Simplify right side
    78,215.32x = 4,772,588,473.34
  5. Step 5: Solve for x
    x = 4,772,588,473.34/78,215.32
  6. Step 6: Final answer
    x = 61,018.59

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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.