Home / 53,663.40-80,487.36-18,118.28

Finding the Fourth Proportional to 53,663.40, 80,487.36 and 18,118.28

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Solution

The fourth proportional to 53,663.40, 80,487.36 and 18,118.28 is: 27,174.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,663.40 : 80,487.36 = 18,118.28 : x
  2. Step 2: Convert to fraction form
    53,663.40/80,487.36 = 18,118.28/x
  3. Step 3: Cross multiply
    53,663.40x = 80,487.36 × 18,118.28
  4. Step 4: Simplify right side
    53,663.40x = 1,458,292,122.50
  5. Step 5: Solve for x
    x = 1,458,292,122.50/53,663.40
  6. Step 6: Final answer
    x = 27,174.80

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1.5x scale

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.