Home / 53,308.68-79,979-15,870.06

Finding the Fourth Proportional to 53,308.68, 79,979 and 15,870.06

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Solution

The fourth proportional to 53,308.68, 79,979 and 15,870.06 is: 23,809.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,308.68 : 79,979 = 15,870.06 : x
  2. Step 2: Convert to fraction form
    53,308.68/79,979 = 15,870.06/x
  3. Step 3: Cross multiply
    53,308.68x = 79,979 × 15,870.06
  4. Step 4: Simplify right side
    53,308.68x = 1,269,271,528.74
  5. Step 5: Solve for x
    x = 1,269,271,528.74/53,308.68
  6. Step 6: Final answer
    x = 23,809.85

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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.