Home / 77,774.19-107,330.42-43,783.92

Finding the Fourth Proportional to 77,774.19, 107,330.42 and 43,783.92

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Solution

The fourth proportional to 77,774.19, 107,330.42 and 43,783.92 is: 60,422.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,774.19 : 107,330.42 = 43,783.92 : x
  2. Step 2: Convert to fraction form
    77,774.19/107,330.42 = 43,783.92/x
  3. Step 3: Cross multiply
    77,774.19x = 107,330.42 × 43,783.92
  4. Step 4: Simplify right side
    77,774.19x = 4,699,346,522.85
  5. Step 5: Solve for x
    x = 4,699,346,522.85/77,774.19
  6. Step 6: Final answer
    x = 60,422.96

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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.