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Finding the Fourth Proportional to 71,210.77, 106,853.28 and 51,650.79

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Solution

The fourth proportional to 71,210.77, 106,853.28 and 51,650.79 is: 77,503.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,210.77 : 106,853.28 = 51,650.79 : x
  2. Step 2: Convert to fraction form
    71,210.77/106,853.28 = 51,650.79/x
  3. Step 3: Cross multiply
    71,210.77x = 106,853.28 × 51,650.79
  4. Step 4: Simplify right side
    71,210.77x = 5,519,056,326.09
  5. Step 5: Solve for x
    x = 5,519,056,326.09/71,210.77
  6. Step 6: Final answer
    x = 77,503.11

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.