Home / 49,870.81-74,806.21-21,401.59

Finding the Fourth Proportional to 49,870.81, 74,806.21 and 21,401.59

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Solution

The fourth proportional to 49,870.81, 74,806.21 and 21,401.59 is: 32,102.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,870.81 : 74,806.21 = 21,401.59 : x
  2. Step 2: Convert to fraction form
    49,870.81/74,806.21 = 21,401.59/x
  3. Step 3: Cross multiply
    49,870.81x = 74,806.21 × 21,401.59
  4. Step 4: Simplify right side
    49,870.81x = 1,600,971,835.87
  5. Step 5: Solve for x
    x = 1,600,971,835.87/49,870.81
  6. Step 6: Final answer
    x = 32,102.38

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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.