Home / 77,529.36-107,007.18-47,308.20

Finding the Fourth Proportional to 77,529.36, 107,007.18 and 47,308.20

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Solution

The fourth proportional to 77,529.36, 107,007.18 and 47,308.20 is: 65,295.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,529.36 : 107,007.18 = 47,308.20 : x
  2. Step 2: Convert to fraction form
    77,529.36/107,007.18 = 47,308.20/x
  3. Step 3: Cross multiply
    77,529.36x = 107,007.18 × 47,308.20
  4. Step 4: Simplify right side
    77,529.36x = 5,062,317,072.88
  5. Step 5: Solve for x
    x = 5,062,317,072.88/77,529.36
  6. Step 6: Final answer
    x = 65,295.48

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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.