Home / 74,692.31-103,074.45-40,702.28

Finding the Fourth Proportional to 74,692.31, 103,074.45 and 40,702.28

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Solution

The fourth proportional to 74,692.31, 103,074.45 and 40,702.28 is: 56,168.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,692.31 : 103,074.45 = 40,702.28 : x
  2. Step 2: Convert to fraction form
    74,692.31/103,074.45 = 40,702.28/x
  3. Step 3: Cross multiply
    74,692.31x = 103,074.45 × 40,702.28
  4. Step 4: Simplify right side
    74,692.31x = 4,195,365,124.75
  5. Step 5: Solve for x
    x = 4,195,365,124.75/74,692.31
  6. Step 6: Final answer
    x = 56,168.64

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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.