Home / 53,086.64-79,547.31-19,797.75

Finding the Fourth Proportional to 53,086.64, 79,547.31 and 19,797.75

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Solution

The fourth proportional to 53,086.64, 79,547.31 and 19,797.75 is: 29,665.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,086.64 : 79,547.31 = 19,797.75 : x
  2. Step 2: Convert to fraction form
    53,086.64/79,547.31 = 19,797.75/x
  3. Step 3: Cross multiply
    53,086.64x = 79,547.31 × 19,797.75
  4. Step 4: Simplify right side
    53,086.64x = 1,574,857,756.55
  5. Step 5: Solve for x
    x = 1,574,857,756.55/53,086.64
  6. Step 6: Final answer
    x = 29,665.80

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.