Home / 87,878.36-121,280.82-50,158.28

Finding the Fourth Proportional to 87,878.36, 121,280.82 and 50,158.28

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Solution

The fourth proportional to 87,878.36, 121,280.82 and 50,158.28 is: 69,223.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,878.36 : 121,280.82 = 50,158.28 : x
  2. Step 2: Convert to fraction form
    87,878.36/121,280.82 = 50,158.28/x
  3. Step 3: Cross multiply
    87,878.36x = 121,280.82 × 50,158.28
  4. Step 4: Simplify right side
    87,878.36x = 6,083,237,328.19
  5. Step 5: Solve for x
    x = 6,083,237,328.19/87,878.36
  6. Step 6: Final answer
    x = 69,223.38

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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.