Home / 77,291.20-116,077.60-67,614.40

Finding the Fourth Proportional to 77,291.20, 116,077.60 and 67,614.40

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Solution

The fourth proportional to 77,291.20, 116,077.60 and 67,614.40 is: 101,544.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,291.20 : 116,077.60 = 67,614.40 : x
  2. Step 2: Convert to fraction form
    77,291.20/116,077.60 = 67,614.40/x
  3. Step 3: Cross multiply
    77,291.20x = 116,077.60 × 67,614.40
  4. Step 4: Simplify right side
    77,291.20x = 7,848,517,277.44
  5. Step 5: Solve for x
    x = 7,848,517,277.44/77,291.20
  6. Step 6: Final answer
    x = 101,544.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.