Home / 45,724.56-63,071.64-31,377.84

Finding the Fourth Proportional to 45,724.56, 63,071.64 and 31,377.84

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Solution

The fourth proportional to 45,724.56, 63,071.64 and 31,377.84 is: 43,282.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,724.56 : 63,071.64 = 31,377.84 : x
  2. Step 2: Convert to fraction form
    45,724.56/63,071.64 = 31,377.84/x
  3. Step 3: Cross multiply
    45,724.56x = 63,071.64 × 31,377.84
  4. Step 4: Simplify right side
    45,724.56x = 1,979,051,828.46
  5. Step 5: Solve for x
    x = 1,979,051,828.46/45,724.56
  6. Step 6: Final answer
    x = 43,282.03

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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.