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Finding the Fourth Proportional to 51,279.70, 76,931.70 and 26,323.60

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Solution

The fourth proportional to 51,279.70, 76,931.70 and 26,323.60 is: 39,491.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,279.70 : 76,931.70 = 26,323.60 : x
  2. Step 2: Convert to fraction form
    51,279.70/76,931.70 = 26,323.60/x
  3. Step 3: Cross multiply
    51,279.70x = 76,931.70 × 26,323.60
  4. Step 4: Simplify right side
    51,279.70x = 2,025,119,298.12
  5. Step 5: Solve for x
    x = 2,025,119,298.12/51,279.70
  6. Step 6: Final answer
    x = 39,491.64

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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.