Home / 90,210.96-124,492.68-49,928.04

Finding the Fourth Proportional to 90,210.96, 124,492.68 and 49,928.04

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Solution

The fourth proportional to 90,210.96, 124,492.68 and 49,928.04 is: 68,901.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,210.96 : 124,492.68 = 49,928.04 : x
  2. Step 2: Convert to fraction form
    90,210.96/124,492.68 = 49,928.04/x
  3. Step 3: Cross multiply
    90,210.96x = 124,492.68 × 49,928.04
  4. Step 4: Simplify right side
    90,210.96x = 6,215,675,506.75
  5. Step 5: Solve for x
    x = 6,215,675,506.75/90,210.96
  6. Step 6: Final answer
    x = 68,901.56

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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.