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Finding the Fourth Proportional to 64,714.40, 89,284.32 and 52,757.12

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Solution

The fourth proportional to 64,714.40, 89,284.32 and 52,757.12 is: 72,787.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,714.40 : 89,284.32 = 52,757.12 : x
  2. Step 2: Convert to fraction form
    64,714.40/89,284.32 = 52,757.12/x
  3. Step 3: Cross multiply
    64,714.40x = 89,284.32 × 52,757.12
  4. Step 4: Simplify right side
    64,714.40x = 4,710,383,584.36
  5. Step 5: Solve for x
    x = 4,710,383,584.36/64,714.40
  6. Step 6: Final answer
    x = 72,787.26

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.