Home / 53,719.52-74,128.60-31,059.96

Finding the Fourth Proportional to 53,719.52, 74,128.60 and 31,059.96

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Solution

The fourth proportional to 53,719.52, 74,128.60 and 31,059.96 is: 42,860.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,719.52 : 74,128.60 = 31,059.96 : x
  2. Step 2: Convert to fraction form
    53,719.52/74,128.60 = 31,059.96/x
  3. Step 3: Cross multiply
    53,719.52x = 74,128.60 × 31,059.96
  4. Step 4: Simplify right side
    53,719.52x = 2,302,431,350.86
  5. Step 5: Solve for x
    x = 2,302,431,350.86/53,719.52
  6. Step 6: Final answer
    x = 42,860.24

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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.