Home / 87,816.51-121,186.95-47,530.35

Finding the Fourth Proportional to 87,816.51, 121,186.95 and 47,530.35

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Solution

The fourth proportional to 87,816.51, 121,186.95 and 47,530.35 is: 65,591.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,816.51 : 121,186.95 = 47,530.35 : x
  2. Step 2: Convert to fraction form
    87,816.51/121,186.95 = 47,530.35/x
  3. Step 3: Cross multiply
    87,816.51x = 121,186.95 × 47,530.35
  4. Step 4: Simplify right side
    87,816.51x = 5,760,058,148.93
  5. Step 5: Solve for x
    x = 5,760,058,148.93/87,816.51
  6. Step 6: Final answer
    x = 65,591.97

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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.