Home / 90,926.81-125,482.88-50,640.56

Finding the Fourth Proportional to 90,926.81, 125,482.88 and 50,640.56

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Solution

The fourth proportional to 90,926.81, 125,482.88 and 50,640.56 is: 69,886.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,926.81 : 125,482.88 = 50,640.56 : x
  2. Step 2: Convert to fraction form
    90,926.81/125,482.88 = 50,640.56/x
  3. Step 3: Cross multiply
    90,926.81x = 125,482.88 × 50,640.56
  4. Step 4: Simplify right side
    90,926.81x = 6,354,523,753.92
  5. Step 5: Solve for x
    x = 6,354,523,753.92/90,926.81
  6. Step 6: Final answer
    x = 69,886.14

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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.