Home / 78,935.08-108,932.55-43,127.02

Finding the Fourth Proportional to 78,935.08, 108,932.55 and 43,127.02

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Solution

The fourth proportional to 78,935.08, 108,932.55 and 43,127.02 is: 59,516.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,935.08 : 108,932.55 = 43,127.02 : x
  2. Step 2: Convert to fraction form
    78,935.08/108,932.55 = 43,127.02/x
  3. Step 3: Cross multiply
    78,935.08x = 108,932.55 × 43,127.02
  4. Step 4: Simplify right side
    78,935.08x = 4,697,936,262.50
  5. Step 5: Solve for x
    x = 4,697,936,262.50/78,935.08
  6. Step 6: Final answer
    x = 59,516.46

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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.