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Finding the Fourth Proportional to 68,071.80, 101,888.70 and 36,402.63

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Solution

The fourth proportional to 68,071.80, 101,888.70 and 36,402.63 is: 54,486.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,071.80 : 101,888.70 = 36,402.63 : x
  2. Step 2: Convert to fraction form
    68,071.80/101,888.70 = 36,402.63/x
  3. Step 3: Cross multiply
    68,071.80x = 101,888.70 × 36,402.63
  4. Step 4: Simplify right side
    68,071.80x = 3,709,016,647.28
  5. Step 5: Solve for x
    x = 3,709,016,647.28/68,071.80
  6. Step 6: Final answer
    x = 54,486.83

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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.