Home / 87,705.24-121,023.90-51,896.76

Finding the Fourth Proportional to 87,705.24, 121,023.90 and 51,896.76

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Solution

The fourth proportional to 87,705.24, 121,023.90 and 51,896.76 is: 71,612.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,705.24 : 121,023.90 = 51,896.76 : x
  2. Step 2: Convert to fraction form
    87,705.24/121,023.90 = 51,896.76/x
  3. Step 3: Cross multiply
    87,705.24x = 121,023.90 × 51,896.76
  4. Step 4: Simplify right side
    87,705.24x = 6,280,748,292.56
  5. Step 5: Solve for x
    x = 6,280,748,292.56/87,705.24
  6. Step 6: Final answer
    x = 71,612.01

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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.