Home / 87,060.64-120,142.56-51,252.16

Finding the Fourth Proportional to 87,060.64, 120,142.56 and 51,252.16

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Solution

The fourth proportional to 87,060.64, 120,142.56 and 51,252.16 is: 70,727.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,060.64 : 120,142.56 = 51,252.16 : x
  2. Step 2: Convert to fraction form
    87,060.64/120,142.56 = 51,252.16/x
  3. Step 3: Cross multiply
    87,060.64x = 120,142.56 × 51,252.16
  4. Step 4: Simplify right side
    87,060.64x = 6,157,565,707.93
  5. Step 5: Solve for x
    x = 6,157,565,707.93/87,060.64
  6. Step 6: Final answer
    x = 70,727.32

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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.