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Finding the Fourth Proportional to 72,294.69, 99,770.49 and 45,427.26

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Solution

The fourth proportional to 72,294.69, 99,770.49 and 45,427.26 is: 62,692.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,294.69 : 99,770.49 = 45,427.26 : x
  2. Step 2: Convert to fraction form
    72,294.69/99,770.49 = 45,427.26/x
  3. Step 3: Cross multiply
    72,294.69x = 99,770.49 × 45,427.26
  4. Step 4: Simplify right side
    72,294.69x = 4,532,299,989.56
  5. Step 5: Solve for x
    x = 4,532,299,989.56/72,294.69
  6. Step 6: Final answer
    x = 62,692.02

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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.