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Finding the Fourth Proportional to 51,809.36, 77,612.35 and 26,865.72

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Solution

The fourth proportional to 51,809.36, 77,612.35 and 26,865.72 is: 40,245.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,809.36 : 77,612.35 = 26,865.72 : x
  2. Step 2: Convert to fraction form
    51,809.36/77,612.35 = 26,865.72/x
  3. Step 3: Cross multiply
    51,809.36x = 77,612.35 × 26,865.72
  4. Step 4: Simplify right side
    51,809.36x = 2,085,111,141.25
  5. Step 5: Solve for x
    x = 2,085,111,141.25/51,809.36
  6. Step 6: Final answer
    x = 40,245.84

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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.