Home / 53,851.91-74,322.59-30,890.68

Finding the Fourth Proportional to 53,851.91, 74,322.59 and 30,890.68

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Solution

The fourth proportional to 53,851.91, 74,322.59 and 30,890.68 is: 42,633.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,851.91 : 74,322.59 = 30,890.68 : x
  2. Step 2: Convert to fraction form
    53,851.91/74,322.59 = 30,890.68/x
  3. Step 3: Cross multiply
    53,851.91x = 74,322.59 × 30,890.68
  4. Step 4: Simplify right side
    53,851.91x = 2,295,875,004.20
  5. Step 5: Solve for x
    x = 2,295,875,004.20/53,851.91
  6. Step 6: Final answer
    x = 42,633.13

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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.