Home / 87,173.64-120,298.50-51,365.16

Finding the Fourth Proportional to 87,173.64, 120,298.50 and 51,365.16

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Solution

The fourth proportional to 87,173.64, 120,298.50 and 51,365.16 is: 70,883.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,173.64 : 120,298.50 = 51,365.16 : x
  2. Step 2: Convert to fraction form
    87,173.64/120,298.50 = 51,365.16/x
  3. Step 3: Cross multiply
    87,173.64x = 120,298.50 × 51,365.16
  4. Step 4: Simplify right side
    87,173.64x = 6,179,151,700.26
  5. Step 5: Solve for x
    x = 6,179,151,700.26/87,173.64
  6. Step 6: Final answer
    x = 70,883.26

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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.