Home / 87,923.12-121,333.92-47,637.16

Finding the Fourth Proportional to 87,923.12, 121,333.92 and 47,637.16

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Solution

The fourth proportional to 87,923.12, 121,333.92 and 47,637.16 is: 65,739.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,923.12 : 121,333.92 = 47,637.16 : x
  2. Step 2: Convert to fraction form
    87,923.12/121,333.92 = 47,637.16/x
  3. Step 3: Cross multiply
    87,923.12x = 121,333.92 × 47,637.16
  4. Step 4: Simplify right side
    87,923.12x = 5,780,003,360.47
  5. Step 5: Solve for x
    x = 5,780,003,360.47/87,923.12
  6. Step 6: Final answer
    x = 65,739.29

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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.