Home / 53,230.74-79,802.31-21,213.06

Finding the Fourth Proportional to 53,230.74, 79,802.31 and 21,213.06

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Solution

The fourth proportional to 53,230.74, 79,802.31 and 21,213.06 is: 31,802.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,230.74 : 79,802.31 = 21,213.06 : x
  2. Step 2: Convert to fraction form
    53,230.74/79,802.31 = 21,213.06/x
  3. Step 3: Cross multiply
    53,230.74x = 79,802.31 × 21,213.06
  4. Step 4: Simplify right side
    53,230.74x = 1,692,851,190.17
  5. Step 5: Solve for x
    x = 1,692,851,190.17/53,230.74
  6. Step 6: Final answer
    x = 31,802.14

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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.