Home / 87,986.93-121,368.20-52,152.95

Finding the Fourth Proportional to 87,986.93, 121,368.20 and 52,152.95

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Solution

The fourth proportional to 87,986.93, 121,368.20 and 52,152.95 is: 71,939.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,986.93 : 121,368.20 = 52,152.95 : x
  2. Step 2: Convert to fraction form
    87,986.93/121,368.20 = 52,152.95/x
  3. Step 3: Cross multiply
    87,986.93x = 121,368.20 × 52,152.95
  4. Step 4: Simplify right side
    87,986.93x = 6,329,709,405.43
  5. Step 5: Solve for x
    x = 6,329,709,405.43/87,986.93
  6. Step 6: Final answer
    x = 71,939.20

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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.