Home / 83,497.83-115,244.40-76,772.82

Finding the Fourth Proportional to 83,497.83, 115,244.40 and 76,772.82

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Solution

The fourth proportional to 83,497.83, 115,244.40 and 76,772.82 is: 105,962.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,497.83 : 115,244.40 = 76,772.82 : x
  2. Step 2: Convert to fraction form
    83,497.83/115,244.40 = 76,772.82/x
  3. Step 3: Cross multiply
    83,497.83x = 115,244.40 × 76,772.82
  4. Step 4: Simplify right side
    83,497.83x = 8,847,637,577.21
  5. Step 5: Solve for x
    x = 8,847,637,577.21/83,497.83
  6. Step 6: Final answer
    x = 105,962.49

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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.