Home / 72,077.53-99,402.47-45,222.97

Finding the Fourth Proportional to 72,077.53, 99,402.47 and 45,222.97

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Solution

The fourth proportional to 72,077.53, 99,402.47 and 45,222.97 is: 62,367.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,077.53 : 99,402.47 = 45,222.97 : x
  2. Step 2: Convert to fraction form
    72,077.53/99,402.47 = 45,222.97/x
  3. Step 3: Cross multiply
    72,077.53x = 99,402.47 × 45,222.97
  4. Step 4: Simplify right side
    72,077.53x = 4,495,274,692.62
  5. Step 5: Solve for x
    x = 4,495,274,692.62/72,077.53
  6. Step 6: Final answer
    x = 62,367.21

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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.