Home / 53,159.69-79,742.43-21,565.05

Finding the Fourth Proportional to 53,159.69, 79,742.43 and 21,565.05

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Solution

The fourth proportional to 53,159.69, 79,742.43 and 21,565.05 is: 32,348.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,159.69 : 79,742.43 = 21,565.05 : x
  2. Step 2: Convert to fraction form
    53,159.69/79,742.43 = 21,565.05/x
  3. Step 3: Cross multiply
    53,159.69x = 79,742.43 × 21,565.05
  4. Step 4: Simplify right side
    53,159.69x = 1,719,649,490.07
  5. Step 5: Solve for x
    x = 1,719,649,490.07/53,159.69
  6. Step 6: Final answer
    x = 32,348.75

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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.