Home / 87,796.09-121,137.51-53,340.13

Finding the Fourth Proportional to 87,796.09, 121,137.51 and 53,340.13

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Solution

The fourth proportional to 87,796.09, 121,137.51 and 53,340.13 is: 73,596.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,796.09 : 121,137.51 = 53,340.13 : x
  2. Step 2: Convert to fraction form
    87,796.09/121,137.51 = 53,340.13/x
  3. Step 3: Cross multiply
    87,796.09x = 121,137.51 × 53,340.13
  4. Step 4: Simplify right side
    87,796.09x = 6,461,490,531.28
  5. Step 5: Solve for x
    x = 6,461,490,531.28/87,796.09
  6. Step 6: Final answer
    x = 73,596.56

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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.