Home / 78,125.10-107,804.94-43,663.48

Finding the Fourth Proportional to 78,125.10, 107,804.94 and 43,663.48

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Solution

The fourth proportional to 78,125.10, 107,804.94 and 43,663.48 is: 60,251.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,125.10 : 107,804.94 = 43,663.48 : x
  2. Step 2: Convert to fraction form
    78,125.10/107,804.94 = 43,663.48/x
  3. Step 3: Cross multiply
    78,125.10x = 107,804.94 × 43,663.48
  4. Step 4: Simplify right side
    78,125.10x = 4,707,138,841.59
  5. Step 5: Solve for x
    x = 4,707,138,841.59/78,125.10
  6. Step 6: Final answer
    x = 60,251.30

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1.5x scale

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.