Home / 78,948.04-108,947.04-43,137.28

Finding the Fourth Proportional to 78,948.04, 108,947.04 and 43,137.28

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Solution

The fourth proportional to 78,948.04, 108,947.04 and 43,137.28 is: 59,528.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,948.04 : 108,947.04 = 43,137.28 : x
  2. Step 2: Convert to fraction form
    78,948.04/108,947.04 = 43,137.28/x
  3. Step 3: Cross multiply
    78,948.04x = 108,947.04 × 43,137.28
  4. Step 4: Simplify right side
    78,948.04x = 4,699,678,969.65
  5. Step 5: Solve for x
    x = 4,699,678,969.65/78,948.04
  6. Step 6: Final answer
    x = 59,528.76

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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.