Home / 282,055.49-423,077.78-68,824.79

Finding the Fourth Proportional to 282,055.49, 423,077.78 and 68,824.79

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Solution

The fourth proportional to 282,055.49, 423,077.78 and 68,824.79 is: 103,235.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,055.49 : 423,077.78 = 68,824.79 : x
  2. Step 2: Convert to fraction form
    282,055.49/423,077.78 = 68,824.79/x
  3. Step 3: Cross multiply
    282,055.49x = 423,077.78 × 68,824.79
  4. Step 4: Simplify right side
    282,055.49x = 29,118,239,018.04
  5. Step 5: Solve for x
    x = 29,118,239,018.04/282,055.49
  6. Step 6: Final answer
    x = 103,235.85

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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.