Home / 93,724.52-129,205.30-66,820.36

Finding the Fourth Proportional to 93,724.52, 129,205.30 and 66,820.36

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Solution

The fourth proportional to 93,724.52, 129,205.30 and 66,820.36 is: 92,116.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,724.52 : 129,205.30 = 66,820.36 : x
  2. Step 2: Convert to fraction form
    93,724.52/129,205.30 = 66,820.36/x
  3. Step 3: Cross multiply
    93,724.52x = 129,205.30 × 66,820.36
  4. Step 4: Simplify right side
    93,724.52x = 8,633,544,659.91
  5. Step 5: Solve for x
    x = 8,633,544,659.91/93,724.52
  6. Step 6: Final answer
    x = 92,116.18

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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.