Home / 90,949.50-125,510.31-53,231.04

Finding the Fourth Proportional to 90,949.50, 125,510.31 and 53,231.04

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Solution

The fourth proportional to 90,949.50, 125,510.31 and 53,231.04 is: 73,458.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,949.50 : 125,510.31 = 53,231.04 : x
  2. Step 2: Convert to fraction form
    90,949.50/125,510.31 = 53,231.04/x
  3. Step 3: Cross multiply
    90,949.50x = 125,510.31 × 53,231.04
  4. Step 4: Simplify right side
    90,949.50x = 6,681,044,332.02
  5. Step 5: Solve for x
    x = 6,681,044,332.02/90,949.50
  6. Step 6: Final answer
    x = 73,458.84

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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.