Home / 53,130.69-79,683.26-15,680.66

Finding the Fourth Proportional to 53,130.69, 79,683.26 and 15,680.66

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Solution

The fourth proportional to 53,130.69, 79,683.26 and 15,680.66 is: 23,517.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,130.69 : 79,683.26 = 15,680.66 : x
  2. Step 2: Convert to fraction form
    53,130.69/79,683.26 = 15,680.66/x
  3. Step 3: Cross multiply
    53,130.69x = 79,683.26 × 15,680.66
  4. Step 4: Simplify right side
    53,130.69x = 1,249,485,630.93
  5. Step 5: Solve for x
    x = 1,249,485,630.93/53,130.69
  6. Step 6: Final answer
    x = 23,517.21

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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.