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Finding the Fourth Proportional to 51,501.80, 77,179.80 and 45,232.40

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Solution

The fourth proportional to 51,501.80, 77,179.80 and 45,232.40 is: 67,784.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,501.80 : 77,179.80 = 45,232.40 : x
  2. Step 2: Convert to fraction form
    51,501.80/77,179.80 = 45,232.40/x
  3. Step 3: Cross multiply
    51,501.80x = 77,179.80 × 45,232.40
  4. Step 4: Simplify right side
    51,501.80x = 3,491,027,585.52
  5. Step 5: Solve for x
    x = 3,491,027,585.52/51,501.80
  6. Step 6: Final answer
    x = 67,784.57

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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.