Home / 87,885.91-121,282.67-47,600.00

Finding the Fourth Proportional to 87,885.91, 121,282.67 and 47,600.00

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Solution

The fourth proportional to 87,885.91, 121,282.67 and 47,600.00 is: 65,688.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,885.91 : 121,282.67 = 47,600.00 : x
  2. Step 2: Convert to fraction form
    87,885.91/121,282.67 = 47,600.00/x
  3. Step 3: Cross multiply
    87,885.91x = 121,282.67 × 47,600.00
  4. Step 4: Simplify right side
    87,885.91x = 5,773,055,473.86
  5. Step 5: Solve for x
    x = 5,773,055,473.86/87,885.91
  6. Step 6: Final answer
    x = 65,688.07

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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.