Home / 56,606.80-84,856.20-21,058.60

Finding the Fourth Proportional to 56,606.80, 84,856.20 and 21,058.60

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Solution

The fourth proportional to 56,606.80, 84,856.20 and 21,058.60 is: 31,567.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,606.80 : 84,856.20 = 21,058.60 : x
  2. Step 2: Convert to fraction form
    56,606.80/84,856.20 = 21,058.60/x
  3. Step 3: Cross multiply
    56,606.80x = 84,856.20 × 21,058.60
  4. Step 4: Simplify right side
    56,606.80x = 1,786,952,773.32
  5. Step 5: Solve for x
    x = 1,786,952,773.32/56,606.80
  6. Step 6: Final answer
    x = 31,567.81

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.