Home / 53,837.21-74,302.40-30,876.03

Finding the Fourth Proportional to 53,837.21, 74,302.40 and 30,876.03

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Solution

The fourth proportional to 53,837.21, 74,302.40 and 30,876.03 is: 42,612.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,837.21 : 74,302.40 = 30,876.03 : x
  2. Step 2: Convert to fraction form
    53,837.21/74,302.40 = 30,876.03/x
  3. Step 3: Cross multiply
    53,837.21x = 74,302.40 × 30,876.03
  4. Step 4: Simplify right side
    53,837.21x = 2,294,163,131.47
  5. Step 5: Solve for x
    x = 2,294,163,131.47/53,837.21
  6. Step 6: Final answer
    x = 42,612.96

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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.