Home / 282,642.30-423,963.45-72,269.10

Finding the Fourth Proportional to 282,642.30, 423,963.45 and 72,269.10

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Solution

The fourth proportional to 282,642.30, 423,963.45 and 72,269.10 is: 108,403.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,642.30 : 423,963.45 = 72,269.10 : x
  2. Step 2: Convert to fraction form
    282,642.30/423,963.45 = 72,269.10/x
  3. Step 3: Cross multiply
    282,642.30x = 423,963.45 × 72,269.10
  4. Step 4: Simplify right side
    282,642.30x = 30,639,456,964.40
  5. Step 5: Solve for x
    x = 30,639,456,964.40/282,642.30
  6. Step 6: Final answer
    x = 108,403.65

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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.