Home / 49,861.56-74,802.66-20,279.40

Finding the Fourth Proportional to 49,861.56, 74,802.66 and 20,279.40

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Solution

The fourth proportional to 49,861.56, 74,802.66 and 20,279.40 is: 30,423.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,861.56 : 74,802.66 = 20,279.40 : x
  2. Step 2: Convert to fraction form
    49,861.56/74,802.66 = 20,279.40/x
  3. Step 3: Cross multiply
    49,861.56x = 74,802.66 × 20,279.40
  4. Step 4: Simplify right side
    49,861.56x = 1,516,953,063.20
  5. Step 5: Solve for x
    x = 1,516,953,063.20/49,861.56
  6. Step 6: Final answer
    x = 30,423.30

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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.