Home / 53,656.96-80,458.40-18,587.20

Finding the Fourth Proportional to 53,656.96, 80,458.40 and 18,587.20

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Solution

The fourth proportional to 53,656.96, 80,458.40 and 18,587.20 is: 27,871.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,656.96 : 80,458.40 = 18,587.20 : x
  2. Step 2: Convert to fraction form
    53,656.96/80,458.40 = 18,587.20/x
  3. Step 3: Cross multiply
    53,656.96x = 80,458.40 × 18,587.20
  4. Step 4: Simplify right side
    53,656.96x = 1,495,496,372.48
  5. Step 5: Solve for x
    x = 1,495,496,372.48/53,656.96
  6. Step 6: Final answer
    x = 27,871.43

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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.