Home / 90,497.50-124,880.56-50,209.92

Finding the Fourth Proportional to 90,497.50, 124,880.56 and 50,209.92

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Solution

The fourth proportional to 90,497.50, 124,880.56 and 50,209.92 is: 69,286.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,497.50 : 124,880.56 = 50,209.92 : x
  2. Step 2: Convert to fraction form
    90,497.50/124,880.56 = 50,209.92/x
  3. Step 3: Cross multiply
    90,497.50x = 124,880.56 × 50,209.92
  4. Step 4: Simplify right side
    90,497.50x = 6,270,242,801.63
  5. Step 5: Solve for x
    x = 6,270,242,801.63/90,497.50
  6. Step 6: Final answer
    x = 69,286.37

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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.