Home / 90,913.97-136,392.41-28,584.47

Finding the Fourth Proportional to 90,913.97, 136,392.41 and 28,584.47

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Solution

The fourth proportional to 90,913.97, 136,392.41 and 28,584.47 is: 42,883.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,913.97 : 136,392.41 = 28,584.47 : x
  2. Step 2: Convert to fraction form
    90,913.97/136,392.41 = 28,584.47/x
  3. Step 3: Cross multiply
    90,913.97x = 136,392.41 × 28,584.47
  4. Step 4: Simplify right side
    90,913.97x = 3,898,704,751.87
  5. Step 5: Solve for x
    x = 3,898,704,751.87/90,913.97
  6. Step 6: Final answer
    x = 42,883.45

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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.