Home / 45,010.81-67,516.19-15,428.89

Finding the Fourth Proportional to 45,010.81, 67,516.19 and 15,428.89

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Solution

The fourth proportional to 45,010.81, 67,516.19 and 15,428.89 is: 23,143.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,010.81 : 67,516.19 = 15,428.89 : x
  2. Step 2: Convert to fraction form
    45,010.81/67,516.19 = 15,428.89/x
  3. Step 3: Cross multiply
    45,010.81x = 67,516.19 × 15,428.89
  4. Step 4: Simplify right side
    45,010.81x = 1,041,699,868.73
  5. Step 5: Solve for x
    x = 1,041,699,868.73/45,010.81
  6. Step 6: Final answer
    x = 23,143.33

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1.5x scale

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.