Home / 90,101.03-124,329.90-49,808.30

Finding the Fourth Proportional to 90,101.03, 124,329.90 and 49,808.30

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Solution

The fourth proportional to 90,101.03, 124,329.90 and 49,808.30 is: 68,730.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,101.03 : 124,329.90 = 49,808.30 : x
  2. Step 2: Convert to fraction form
    90,101.03/124,329.90 = 49,808.30/x
  3. Step 3: Cross multiply
    90,101.03x = 124,329.90 × 49,808.30
  4. Step 4: Simplify right side
    90,101.03x = 6,192,660,958.17
  5. Step 5: Solve for x
    x = 6,192,660,958.17/90,101.03
  6. Step 6: Final answer
    x = 68,730.19

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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.