Home / 53,131.69-79,684.75-15,681.66

Finding the Fourth Proportional to 53,131.69, 79,684.75 and 15,681.66

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Solution

The fourth proportional to 53,131.69, 79,684.75 and 15,681.66 is: 23,518.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,131.69 : 79,684.75 = 15,681.66 : x
  2. Step 2: Convert to fraction form
    53,131.69/79,684.75 = 15,681.66/x
  3. Step 3: Cross multiply
    53,131.69x = 79,684.75 × 15,681.66
  4. Step 4: Simplify right side
    53,131.69x = 1,249,589,156.69
  5. Step 5: Solve for x
    x = 1,249,589,156.69/53,131.69
  6. Step 6: Final answer
    x = 23,518.72

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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.