Home / 50,853.91-70,182.09-30,715.69

Finding the Fourth Proportional to 50,853.91, 70,182.09 and 30,715.69

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Solution

The fourth proportional to 50,853.91, 70,182.09 and 30,715.69 is: 42,389.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,853.91 : 70,182.09 = 30,715.69 : x
  2. Step 2: Convert to fraction form
    50,853.91/70,182.09 = 30,715.69/x
  3. Step 3: Cross multiply
    50,853.91x = 70,182.09 × 30,715.69
  4. Step 4: Simplify right side
    50,853.91x = 2,155,691,319.99
  5. Step 5: Solve for x
    x = 2,155,691,319.99/50,853.91
  6. Step 6: Final answer
    x = 42,389.88

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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.