Home / 90,913.74-136,392.39-28,584.24

Finding the Fourth Proportional to 90,913.74, 136,392.39 and 28,584.24

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Solution

The fourth proportional to 90,913.74, 136,392.39 and 28,584.24 is: 42,883.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,913.74 : 136,392.39 = 28,584.24 : x
  2. Step 2: Convert to fraction form
    90,913.74/136,392.39 = 28,584.24/x
  3. Step 3: Cross multiply
    90,913.74x = 136,392.39 × 28,584.24
  4. Step 4: Simplify right side
    90,913.74x = 3,898,672,809.93
  5. Step 5: Solve for x
    x = 3,898,672,809.93/90,913.74
  6. Step 6: Final answer
    x = 42,883.21

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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.