Home / 72,569.49-108,853.10-51,133.58

Finding the Fourth Proportional to 72,569.49, 108,853.10 and 51,133.58

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Solution

The fourth proportional to 72,569.49, 108,853.10 and 51,133.58 is: 76,699.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,569.49 : 108,853.10 = 51,133.58 : x
  2. Step 2: Convert to fraction form
    72,569.49/108,853.10 = 51,133.58/x
  3. Step 3: Cross multiply
    72,569.49x = 108,853.10 × 51,133.58
  4. Step 4: Simplify right side
    72,569.49x = 5,566,048,697.10
  5. Step 5: Solve for x
    x = 5,566,048,697.10/72,569.49
  6. Step 6: Final answer
    x = 76,699.57

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.