Home / 53,320.31-79,911.09-21,693.51

Finding the Fourth Proportional to 53,320.31, 79,911.09 and 21,693.51

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Solution

The fourth proportional to 53,320.31, 79,911.09 and 21,693.51 is: 32,512.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,320.31 : 79,911.09 = 21,693.51 : x
  2. Step 2: Convert to fraction form
    53,320.31/79,911.09 = 21,693.51/x
  3. Step 3: Cross multiply
    53,320.31x = 79,911.09 × 21,693.51
  4. Step 4: Simplify right side
    53,320.31x = 1,733,552,030.03
  5. Step 5: Solve for x
    x = 1,733,552,030.03/53,320.31
  6. Step 6: Final answer
    x = 32,512.04

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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.