Home / 56,890.24-78,507.98-31,396.84

Finding the Fourth Proportional to 56,890.24, 78,507.98 and 31,396.84

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Solution

The fourth proportional to 56,890.24, 78,507.98 and 31,396.84 is: 43,327.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,890.24 : 78,507.98 = 31,396.84 : x
  2. Step 2: Convert to fraction form
    56,890.24/78,507.98 = 31,396.84/x
  3. Step 3: Cross multiply
    56,890.24x = 78,507.98 × 31,396.84
  4. Step 4: Simplify right side
    56,890.24x = 2,464,902,486.78
  5. Step 5: Solve for x
    x = 2,464,902,486.78/56,890.24
  6. Step 6: Final answer
    x = 43,327.34

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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.