Home / 87,730.29-121,077.18-53,761.32

Finding the Fourth Proportional to 87,730.29, 121,077.18 and 53,761.32

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Solution

The fourth proportional to 87,730.29, 121,077.18 and 53,761.32 is: 74,196.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,730.29 : 121,077.18 = 53,761.32 : x
  2. Step 2: Convert to fraction form
    87,730.29/121,077.18 = 53,761.32/x
  3. Step 3: Cross multiply
    87,730.29x = 121,077.18 × 53,761.32
  4. Step 4: Simplify right side
    87,730.29x = 6,509,269,018.68
  5. Step 5: Solve for x
    x = 6,509,269,018.68/87,730.29
  6. Step 6: Final answer
    x = 74,196.37

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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.