Home / 87,992.48-121,428.60-47,706.32

Finding the Fourth Proportional to 87,992.48, 121,428.60 and 47,706.32

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Solution

The fourth proportional to 87,992.48, 121,428.60 and 47,706.32 is: 65,834.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,992.48 : 121,428.60 = 47,706.32 : x
  2. Step 2: Convert to fraction form
    87,992.48/121,428.60 = 47,706.32/x
  3. Step 3: Cross multiply
    87,992.48x = 121,428.60 × 47,706.32
  4. Step 4: Simplify right side
    87,992.48x = 5,792,911,648.75
  5. Step 5: Solve for x
    x = 5,792,911,648.75/87,992.48
  6. Step 6: Final answer
    x = 65,834.17

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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.