Home / 90,912.49-136,332.28-53,482.39

Finding the Fourth Proportional to 90,912.49, 136,332.28 and 53,482.39

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Solution

The fourth proportional to 90,912.49, 136,332.28 and 53,482.39 is: 80,202.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,912.49 : 136,332.28 = 53,482.39 : x
  2. Step 2: Convert to fraction form
    90,912.49/136,332.28 = 53,482.39/x
  3. Step 3: Cross multiply
    90,912.49x = 136,332.28 × 53,482.39
  4. Step 4: Simplify right side
    90,912.49x = 7,291,375,894.57
  5. Step 5: Solve for x
    x = 7,291,375,894.57/90,912.49
  6. Step 6: Final answer
    x = 80,202.14

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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.