Home / 77,190.60-106,543.98-45,369.72

Finding the Fourth Proportional to 77,190.60, 106,543.98 and 45,369.72

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Solution

The fourth proportional to 77,190.60, 106,543.98 and 45,369.72 is: 62,622.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,190.60 : 106,543.98 = 45,369.72 : x
  2. Step 2: Convert to fraction form
    77,190.60/106,543.98 = 45,369.72/x
  3. Step 3: Cross multiply
    77,190.60x = 106,543.98 × 45,369.72
  4. Step 4: Simplify right side
    77,190.60x = 4,833,870,540.29
  5. Step 5: Solve for x
    x = 4,833,870,540.29/77,190.60
  6. Step 6: Final answer
    x = 62,622.53

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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.