Home / 52,162.32-78,215.16-18,411.44

Finding the Fourth Proportional to 52,162.32, 78,215.16 and 18,411.44

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Solution

The fourth proportional to 52,162.32, 78,215.16 and 18,411.44 is: 27,607.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,162.32 : 78,215.16 = 18,411.44 : x
  2. Step 2: Convert to fraction form
    52,162.32/78,215.16 = 18,411.44/x
  3. Step 3: Cross multiply
    52,162.32x = 78,215.16 × 18,411.44
  4. Step 4: Simplify right side
    52,162.32x = 1,440,053,725.43
  5. Step 5: Solve for x
    x = 1,440,053,725.43/52,162.32
  6. Step 6: Final answer
    x = 27,607.16

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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.