Home / 316,529.19-474,840.72-91,891.49

Finding the Fourth Proportional to 316,529.19, 474,840.72 and 91,891.49

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Solution

The fourth proportional to 316,529.19, 474,840.72 and 91,891.49 is: 137,850.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,529.19 : 474,840.72 = 91,891.49 : x
  2. Step 2: Convert to fraction form
    316,529.19/474,840.72 = 91,891.49/x
  3. Step 3: Cross multiply
    316,529.19x = 474,840.72 × 91,891.49
  4. Step 4: Simplify right side
    316,529.19x = 43,633,818,899.27
  5. Step 5: Solve for x
    x = 43,633,818,899.27/316,529.19
  6. Step 6: Final answer
    x = 137,850.85

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.