Home / 78,945.04-108,951.72-43,140.48

Finding the Fourth Proportional to 78,945.04, 108,951.72 and 43,140.48

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Solution

The fourth proportional to 78,945.04, 108,951.72 and 43,140.48 is: 59,538.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,945.04 : 108,951.72 = 43,140.48 : x
  2. Step 2: Convert to fraction form
    78,945.04/108,951.72 = 43,140.48/x
  3. Step 3: Cross multiply
    78,945.04x = 108,951.72 × 43,140.48
  4. Step 4: Simplify right side
    78,945.04x = 4,700,229,497.63
  5. Step 5: Solve for x
    x = 4,700,229,497.63/78,945.04
  6. Step 6: Final answer
    x = 59,538.00

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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.