Home / 77,781.14-107,112.08-67,567.49

Finding the Fourth Proportional to 77,781.14, 107,112.08 and 67,567.49

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Solution

The fourth proportional to 77,781.14, 107,112.08 and 67,567.49 is: 93,046.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,781.14 : 107,112.08 = 67,567.49 : x
  2. Step 2: Convert to fraction form
    77,781.14/107,112.08 = 67,567.49/x
  3. Step 3: Cross multiply
    77,781.14x = 107,112.08 × 67,567.49
  4. Step 4: Simplify right side
    77,781.14x = 7,237,294,830.98
  5. Step 5: Solve for x
    x = 7,237,294,830.98/77,781.14
  6. Step 6: Final answer
    x = 93,046.92

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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.