Home / 87,827.40-121,174-53,818.32

Finding the Fourth Proportional to 87,827.40, 121,174 and 53,818.32

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Solution

The fourth proportional to 87,827.40, 121,174 and 53,818.32 is: 74,252.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,827.40 : 121,174 = 53,818.32 : x
  2. Step 2: Convert to fraction form
    87,827.40/121,174 = 53,818.32/x
  3. Step 3: Cross multiply
    87,827.40x = 121,174 × 53,818.32
  4. Step 4: Simplify right side
    87,827.40x = 6,521,381,107.68
  5. Step 5: Solve for x
    x = 6,521,381,107.68/87,827.40
  6. Step 6: Final answer
    x = 74,252.24

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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.