Home / 49,719.09-74,570.47-13,687.13

Finding the Fourth Proportional to 49,719.09, 74,570.47 and 13,687.13

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Solution

The fourth proportional to 49,719.09, 74,570.47 and 13,687.13 is: 20,528.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,719.09 : 74,570.47 = 13,687.13 : x
  2. Step 2: Convert to fraction form
    49,719.09/74,570.47 = 13,687.13/x
  3. Step 3: Cross multiply
    49,719.09x = 74,570.47 × 13,687.13
  4. Step 4: Simplify right side
    49,719.09x = 1,020,655,526.79
  5. Step 5: Solve for x
    x = 1,020,655,526.79/49,719.09
  6. Step 6: Final answer
    x = 20,528.44

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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.