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Finding the Fourth Proportional to 77,007.45, 115,509.56 and 35,454.45

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Solution

The fourth proportional to 77,007.45, 115,509.56 and 35,454.45 is: 53,180.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,007.45 : 115,509.56 = 35,454.45 : x
  2. Step 2: Convert to fraction form
    77,007.45/115,509.56 = 35,454.45/x
  3. Step 3: Cross multiply
    77,007.45x = 115,509.56 × 35,454.45
  4. Step 4: Simplify right side
    77,007.45x = 4,095,327,742.27
  5. Step 5: Solve for x
    x = 4,095,327,742.27/77,007.45
  6. Step 6: Final answer
    x = 53,180.93

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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.