Home / 99,145.94-136,821.76-53,824.01

Finding the Fourth Proportional to 99,145.94, 136,821.76 and 53,824.01

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Solution

The fourth proportional to 99,145.94, 136,821.76 and 53,824.01 is: 74,277.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,145.94 : 136,821.76 = 53,824.01 : x
  2. Step 2: Convert to fraction form
    99,145.94/136,821.76 = 53,824.01/x
  3. Step 3: Cross multiply
    99,145.94x = 136,821.76 × 53,824.01
  4. Step 4: Simplify right side
    99,145.94x = 7,364,294,959.79
  5. Step 5: Solve for x
    x = 7,364,294,959.79/99,145.94
  6. Step 6: Final answer
    x = 74,277.33

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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.