Home / 83,502.06-115,240.11-45,783.66

Finding the Fourth Proportional to 83,502.06, 115,240.11 and 45,783.66

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Solution

The fourth proportional to 83,502.06, 115,240.11 and 45,783.66 is: 63,185.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,502.06 : 115,240.11 = 45,783.66 : x
  2. Step 2: Convert to fraction form
    83,502.06/115,240.11 = 45,783.66/x
  3. Step 3: Cross multiply
    83,502.06x = 115,240.11 × 45,783.66
  4. Step 4: Simplify right side
    83,502.06x = 5,276,114,014.60
  5. Step 5: Solve for x
    x = 5,276,114,014.60/83,502.06
  6. Step 6: Final answer
    x = 63,185.44

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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.