Home / 90,661.68-125,107.20-50,373.36

Finding the Fourth Proportional to 90,661.68, 125,107.20 and 50,373.36

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Solution

The fourth proportional to 90,661.68, 125,107.20 and 50,373.36 is: 69,511.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,661.68 : 125,107.20 = 50,373.36 : x
  2. Step 2: Convert to fraction form
    90,661.68/125,107.20 = 50,373.36/x
  3. Step 3: Cross multiply
    90,661.68x = 125,107.20 × 50,373.36
  4. Step 4: Simplify right side
    90,661.68x = 6,302,070,024.19
  5. Step 5: Solve for x
    x = 6,302,070,024.19/90,661.68
  6. Step 6: Final answer
    x = 69,511.95

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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.