Home / 53,840.03-80,765.40-20,588.06

Finding the Fourth Proportional to 53,840.03, 80,765.40 and 20,588.06

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Solution

The fourth proportional to 53,840.03, 80,765.40 and 20,588.06 is: 30,884.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,840.03 : 80,765.40 = 20,588.06 : x
  2. Step 2: Convert to fraction form
    53,840.03/80,765.40 = 20,588.06/x
  3. Step 3: Cross multiply
    53,840.03x = 80,765.40 × 20,588.06
  4. Step 4: Simplify right side
    53,840.03x = 1,662,802,901.12
  5. Step 5: Solve for x
    x = 1,662,802,901.12/53,840.03
  6. Step 6: Final answer
    x = 30,884.14

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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.