Home / 78,867.37-108,839.55-43,060.11

Finding the Fourth Proportional to 78,867.37, 108,839.55 and 43,060.11

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Solution

The fourth proportional to 78,867.37, 108,839.55 and 43,060.11 is: 59,424.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,867.37 : 108,839.55 = 43,060.11 : x
  2. Step 2: Convert to fraction form
    78,867.37/108,839.55 = 43,060.11/x
  3. Step 3: Cross multiply
    78,867.37x = 108,839.55 × 43,060.11
  4. Step 4: Simplify right side
    78,867.37x = 4,686,642,506.46
  5. Step 5: Solve for x
    x = 4,686,642,506.46/78,867.37
  6. Step 6: Final answer
    x = 59,424.35

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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.