Home / 53,851.89-74,322.60-30,890.69

Finding the Fourth Proportional to 53,851.89, 74,322.60 and 30,890.69

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Solution

The fourth proportional to 53,851.89, 74,322.60 and 30,890.69 is: 42,633.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,851.89 : 74,322.60 = 30,890.69 : x
  2. Step 2: Convert to fraction form
    53,851.89/74,322.60 = 30,890.69/x
  3. Step 3: Cross multiply
    53,851.89x = 74,322.60 × 30,890.69
  4. Step 4: Simplify right side
    53,851.89x = 2,295,876,024.98
  5. Step 5: Solve for x
    x = 2,295,876,024.98/53,851.89
  6. Step 6: Final answer
    x = 42,633.16

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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.