Home / 87,970.69-121,399.82-47,684.62

Finding the Fourth Proportional to 87,970.69, 121,399.82 and 47,684.62

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Solution

The fourth proportional to 87,970.69, 121,399.82 and 47,684.62 is: 65,804.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,970.69 : 121,399.82 = 47,684.62 : x
  2. Step 2: Convert to fraction form
    87,970.69/121,399.82 = 47,684.62/x
  3. Step 3: Cross multiply
    87,970.69x = 121,399.82 × 47,684.62
  4. Step 4: Simplify right side
    87,970.69x = 5,788,904,284.77
  5. Step 5: Solve for x
    x = 5,788,904,284.77/87,970.69
  6. Step 6: Final answer
    x = 65,804.92

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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.