Home / 74,683.29-103,065.46-40,692.70

Finding the Fourth Proportional to 74,683.29, 103,065.46 and 40,692.70

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Solution

The fourth proportional to 74,683.29, 103,065.46 and 40,692.70 is: 56,157.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,683.29 : 103,065.46 = 40,692.70 : x
  2. Step 2: Convert to fraction form
    74,683.29/103,065.46 = 40,692.70/x
  3. Step 3: Cross multiply
    74,683.29x = 103,065.46 × 40,692.70
  4. Step 4: Simplify right side
    74,683.29x = 4,194,011,844.14
  5. Step 5: Solve for x
    x = 4,194,011,844.14/74,683.29
  6. Step 6: Final answer
    x = 56,157.30

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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.