Home / 53,142.95-79,723.02-15,706.78

Finding the Fourth Proportional to 53,142.95, 79,723.02 and 15,706.78

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Solution

The fourth proportional to 53,142.95, 79,723.02 and 15,706.78 is: 23,562.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,142.95 : 79,723.02 = 15,706.78 : x
  2. Step 2: Convert to fraction form
    53,142.95/79,723.02 = 15,706.78/x
  3. Step 3: Cross multiply
    53,142.95x = 79,723.02 × 15,706.78
  4. Step 4: Simplify right side
    53,142.95x = 1,252,191,936.08
  5. Step 5: Solve for x
    x = 1,252,191,936.08/53,142.95
  6. Step 6: Final answer
    x = 23,562.71

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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.