Home / 87,386.51-130,033.13-87,091.27

Finding the Fourth Proportional to 87,386.51, 130,033.13 and 87,091.27

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Solution

The fourth proportional to 87,386.51, 130,033.13 and 87,091.27 is: 129,593.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,386.51 : 130,033.13 = 87,091.27 : x
  2. Step 2: Convert to fraction form
    87,386.51/130,033.13 = 87,091.27/x
  3. Step 3: Cross multiply
    87,386.51x = 130,033.13 × 87,091.27
  4. Step 4: Simplify right side
    87,386.51x = 11,324,750,163.12
  5. Step 5: Solve for x
    x = 11,324,750,163.12/87,386.51
  6. Step 6: Final answer
    x = 129,593.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.