Home / 56,840.48-78,438.82-31,349.20

Finding the Fourth Proportional to 56,840.48, 78,438.82 and 31,349.20

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Solution

The fourth proportional to 56,840.48, 78,438.82 and 31,349.20 is: 43,261.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,840.48 : 78,438.82 = 31,349.20 : x
  2. Step 2: Convert to fraction form
    56,840.48/78,438.82 = 31,349.20/x
  3. Step 3: Cross multiply
    56,840.48x = 78,438.82 × 31,349.20
  4. Step 4: Simplify right side
    56,840.48x = 2,458,994,562.23
  5. Step 5: Solve for x
    x = 2,458,994,562.23/56,840.48
  6. Step 6: Final answer
    x = 43,261.33

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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.