Home / 90,813.12-125,328.10-50,526.97

Finding the Fourth Proportional to 90,813.12, 125,328.10 and 50,526.97

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Solution

The fourth proportional to 90,813.12, 125,328.10 and 50,526.97 is: 69,730.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,813.12 : 125,328.10 = 50,526.97 : x
  2. Step 2: Convert to fraction form
    90,813.12/125,328.10 = 50,526.97/x
  3. Step 3: Cross multiply
    90,813.12x = 125,328.10 × 50,526.97
  4. Step 4: Simplify right side
    90,813.12x = 6,332,448,582.90
  5. Step 5: Solve for x
    x = 6,332,448,582.90/90,813.12
  6. Step 6: Final answer
    x = 69,730.55

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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.