Home / 56,724.05-78,281.08-31,231.67

Finding the Fourth Proportional to 56,724.05, 78,281.08 and 31,231.67

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Solution

The fourth proportional to 56,724.05, 78,281.08 and 31,231.67 is: 43,100.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,724.05 : 78,281.08 = 31,231.67 : x
  2. Step 2: Convert to fraction form
    56,724.05/78,281.08 = 31,231.67/x
  3. Step 3: Cross multiply
    56,724.05x = 78,281.08 × 31,231.67
  4. Step 4: Simplify right side
    56,724.05x = 2,444,848,388.32
  5. Step 5: Solve for x
    x = 2,444,848,388.32/56,724.05
  6. Step 6: Final answer
    x = 43,100.74

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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.