Home / 53,985.78-74,500.50-30,113.97

Finding the Fourth Proportional to 53,985.78, 74,500.50 and 30,113.97

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Solution

The fourth proportional to 53,985.78, 74,500.50 and 30,113.97 is: 41,557.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,985.78 : 74,500.50 = 30,113.97 : x
  2. Step 2: Convert to fraction form
    53,985.78/74,500.50 = 30,113.97/x
  3. Step 3: Cross multiply
    53,985.78x = 74,500.50 × 30,113.97
  4. Step 4: Simplify right side
    53,985.78x = 2,243,505,821.99
  5. Step 5: Solve for x
    x = 2,243,505,821.99/53,985.78
  6. Step 6: Final answer
    x = 41,557.35

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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.