Home / 52,077.40-71,822.10-40,729.30

Finding the Fourth Proportional to 52,077.40, 71,822.10 and 40,729.30

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Solution

The fourth proportional to 52,077.40, 71,822.10 and 40,729.30 is: 56,171.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,077.40 : 71,822.10 = 40,729.30 : x
  2. Step 2: Convert to fraction form
    52,077.40/71,822.10 = 40,729.30/x
  3. Step 3: Cross multiply
    52,077.40x = 71,822.10 × 40,729.30
  4. Step 4: Simplify right side
    52,077.40x = 2,925,263,857.53
  5. Step 5: Solve for x
    x = 2,925,263,857.53/52,077.40
  6. Step 6: Final answer
    x = 56,171.47

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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.