Home / 56,890.23-78,507.99-31,396.83

Finding the Fourth Proportional to 56,890.23, 78,507.99 and 31,396.83

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Solution

The fourth proportional to 56,890.23, 78,507.99 and 31,396.83 is: 43,327.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,890.23 : 78,507.99 = 31,396.83 : x
  2. Step 2: Convert to fraction form
    56,890.23/78,507.99 = 31,396.83/x
  3. Step 3: Cross multiply
    56,890.23x = 78,507.99 × 31,396.83
  4. Step 4: Simplify right side
    56,890.23x = 2,464,902,015.67
  5. Step 5: Solve for x
    x = 2,464,902,015.67/56,890.23
  6. Step 6: Final answer
    x = 43,327.33

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1.5x scale

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.