Home / 99,099.69-136,756.89-53,776.53

Finding the Fourth Proportional to 99,099.69, 136,756.89 and 53,776.53

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Solution

The fourth proportional to 99,099.69, 136,756.89 and 53,776.53 is: 74,211.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,099.69 : 136,756.89 = 53,776.53 : x
  2. Step 2: Convert to fraction form
    99,099.69/136,756.89 = 53,776.53/x
  3. Step 3: Cross multiply
    99,099.69x = 136,756.89 × 53,776.53
  4. Step 4: Simplify right side
    99,099.69x = 7,354,310,997.79
  5. Step 5: Solve for x
    x = 7,354,310,997.79/99,099.69
  6. Step 6: Final answer
    x = 74,211.24

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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.