Home / 65,699.12-90,654.36-37,405.36

Finding the Fourth Proportional to 65,699.12, 90,654.36 and 37,405.36

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Solution

The fourth proportional to 65,699.12, 90,654.36 and 37,405.36 is: 51,613.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,699.12 : 90,654.36 = 37,405.36 : x
  2. Step 2: Convert to fraction form
    65,699.12/90,654.36 = 37,405.36/x
  3. Step 3: Cross multiply
    65,699.12x = 90,654.36 × 37,405.36
  4. Step 4: Simplify right side
    65,699.12x = 3,390,958,971.37
  5. Step 5: Solve for x
    x = 3,390,958,971.37/65,699.12
  6. Step 6: Final answer
    x = 51,613.46

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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.