Home / 78,882.34-108,857.06-43,072.32

Finding the Fourth Proportional to 78,882.34, 108,857.06 and 43,072.32

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Solution

The fourth proportional to 78,882.34, 108,857.06 and 43,072.32 is: 59,439.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,882.34 : 108,857.06 = 43,072.32 : x
  2. Step 2: Convert to fraction form
    78,882.34/108,857.06 = 43,072.32/x
  3. Step 3: Cross multiply
    78,882.34x = 108,857.06 × 43,072.32
  4. Step 4: Simplify right side
    78,882.34x = 4,688,726,122.58
  5. Step 5: Solve for x
    x = 4,688,726,122.58/78,882.34
  6. Step 6: Final answer
    x = 59,439.49

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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.