Home / 53,040.30-79,539.60-19,742.14

Finding the Fourth Proportional to 53,040.30, 79,539.60 and 19,742.14

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Solution

The fourth proportional to 53,040.30, 79,539.60 and 19,742.14 is: 29,605.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,040.30 : 79,539.60 = 19,742.14 : x
  2. Step 2: Convert to fraction form
    53,040.30/79,539.60 = 19,742.14/x
  3. Step 3: Cross multiply
    53,040.30x = 79,539.60 × 19,742.14
  4. Step 4: Simplify right side
    53,040.30x = 1,570,281,918.74
  5. Step 5: Solve for x
    x = 1,570,281,918.74/53,040.30
  6. Step 6: Final answer
    x = 29,605.45

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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.