Home / 87,803.16-121,155.60-51,994.68

Finding the Fourth Proportional to 87,803.16, 121,155.60 and 51,994.68

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Solution

The fourth proportional to 87,803.16, 121,155.60 and 51,994.68 is: 71,745.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,803.16 : 121,155.60 = 51,994.68 : x
  2. Step 2: Convert to fraction form
    87,803.16/121,155.60 = 51,994.68/x
  3. Step 3: Cross multiply
    87,803.16x = 121,155.60 × 51,994.68
  4. Step 4: Simplify right side
    87,803.16x = 6,299,446,652.21
  5. Step 5: Solve for x
    x = 6,299,446,652.21/87,803.16
  6. Step 6: Final answer
    x = 71,745.10

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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.