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Finding the Fourth Proportional to 67,809.78, 101,714.64 and 26,256.78

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Solution

The fourth proportional to 67,809.78, 101,714.64 and 26,256.78 is: 39,385.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,809.78 : 101,714.64 = 26,256.78 : x
  2. Step 2: Convert to fraction form
    67,809.78/101,714.64 = 26,256.78/x
  3. Step 3: Cross multiply
    67,809.78x = 101,714.64 × 26,256.78
  4. Step 4: Simplify right side
    67,809.78x = 2,670,698,925.26
  5. Step 5: Solve for x
    x = 2,670,698,925.26/67,809.78
  6. Step 6: Final answer
    x = 39,385.16

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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.