Home / 53,612.20-80,288.70-51,279.40

Finding the Fourth Proportional to 53,612.20, 80,288.70 and 51,279.40

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Solution

The fourth proportional to 53,612.20, 80,288.70 and 51,279.40 is: 76,795.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,612.20 : 80,288.70 = 51,279.40 : x
  2. Step 2: Convert to fraction form
    53,612.20/80,288.70 = 51,279.40/x
  3. Step 3: Cross multiply
    53,612.20x = 80,288.70 × 51,279.40
  4. Step 4: Simplify right side
    53,612.20x = 4,117,156,362.78
  5. Step 5: Solve for x
    x = 4,117,156,362.78/53,612.20
  6. Step 6: Final answer
    x = 76,795.14

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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.