Home / 99,039.24-136,672.92-53,716.50

Finding the Fourth Proportional to 99,039.24, 136,672.92 and 53,716.50

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Solution

The fourth proportional to 99,039.24, 136,672.92 and 53,716.50 is: 74,128.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,039.24 : 136,672.92 = 53,716.50 : x
  2. Step 2: Convert to fraction form
    99,039.24/136,672.92 = 53,716.50/x
  3. Step 3: Cross multiply
    99,039.24x = 136,672.92 × 53,716.50
  4. Step 4: Simplify right side
    99,039.24x = 7,341,590,907.18
  5. Step 5: Solve for x
    x = 7,341,590,907.18/99,039.24
  6. Step 6: Final answer
    x = 74,128.10

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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.