Home / 87,816.47-121,186.89-47,530.58

Finding the Fourth Proportional to 87,816.47, 121,186.89 and 47,530.58

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Solution

The fourth proportional to 87,816.47, 121,186.89 and 47,530.58 is: 65,592.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,816.47 : 121,186.89 = 47,530.58 : x
  2. Step 2: Convert to fraction form
    87,816.47/121,186.89 = 47,530.58/x
  3. Step 3: Cross multiply
    87,816.47x = 121,186.89 × 47,530.58
  4. Step 4: Simplify right side
    87,816.47x = 5,760,082,564.16
  5. Step 5: Solve for x
    x = 5,760,082,564.16/87,816.47
  6. Step 6: Final answer
    x = 65,592.28

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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.