Home / 77,890.82-107,492.54-43,900.74

Finding the Fourth Proportional to 77,890.82, 107,492.54 and 43,900.74

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Solution

The fourth proportional to 77,890.82, 107,492.54 and 43,900.74 is: 60,584.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,890.82 : 107,492.54 = 43,900.74 : x
  2. Step 2: Convert to fraction form
    77,890.82/107,492.54 = 43,900.74/x
  3. Step 3: Cross multiply
    77,890.82x = 107,492.54 × 43,900.74
  4. Step 4: Simplify right side
    77,890.82x = 4,719,001,830.98
  5. Step 5: Solve for x
    x = 4,719,001,830.98/77,890.82
  6. Step 6: Final answer
    x = 60,584.83

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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.