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Finding the Fourth Proportional to 79,692.20, 109,970.94 and 45,702.12

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Solution

The fourth proportional to 79,692.20, 109,970.94 and 45,702.12 is: 63,066.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,692.20 : 109,970.94 = 45,702.12 : x
  2. Step 2: Convert to fraction form
    79,692.20/109,970.94 = 45,702.12/x
  3. Step 3: Cross multiply
    79,692.20x = 109,970.94 × 45,702.12
  4. Step 4: Simplify right side
    79,692.20x = 5,025,905,551.63
  5. Step 5: Solve for x
    x = 5,025,905,551.63/79,692.20
  6. Step 6: Final answer
    x = 63,066.46

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1.5x scale

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.