Home / 78,952.10-109,026.65-50,706.99

Finding the Fourth Proportional to 78,952.10, 109,026.65 and 50,706.99

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Solution

The fourth proportional to 78,952.10, 109,026.65 and 50,706.99 is: 70,022.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,952.10 : 109,026.65 = 50,706.99 : x
  2. Step 2: Convert to fraction form
    78,952.10/109,026.65 = 50,706.99/x
  3. Step 3: Cross multiply
    78,952.10x = 109,026.65 × 50,706.99
  4. Step 4: Simplify right side
    78,952.10x = 5,528,413,251.28
  5. Step 5: Solve for x
    x = 5,528,413,251.28/78,952.10
  6. Step 6: Final answer
    x = 70,022.37

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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.