Home / 87,751.32-121,088.67-53,744.28

Finding the Fourth Proportional to 87,751.32, 121,088.67 and 53,744.28

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Solution

The fourth proportional to 87,751.32, 121,088.67 and 53,744.28 is: 74,162.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,751.32 : 121,088.67 = 53,744.28 : x
  2. Step 2: Convert to fraction form
    87,751.32/121,088.67 = 53,744.28/x
  3. Step 3: Cross multiply
    87,751.32x = 121,088.67 × 53,744.28
  4. Step 4: Simplify right side
    87,751.32x = 6,507,823,385.31
  5. Step 5: Solve for x
    x = 6,507,823,385.31/87,751.32
  6. Step 6: Final answer
    x = 74,162.11

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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.