Home / 51,642.04-77,467.92-20,470

Finding the Fourth Proportional to 51,642.04, 77,467.92 and 20,470

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Solution

The fourth proportional to 51,642.04, 77,467.92 and 20,470 is: 30,706.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,642.04 : 77,467.92 = 20,470 : x
  2. Step 2: Convert to fraction form
    51,642.04/77,467.92 = 20,470/x
  3. Step 3: Cross multiply
    51,642.04x = 77,467.92 × 20,470
  4. Step 4: Simplify right side
    51,642.04x = 1,585,768,322.40
  5. Step 5: Solve for x
    x = 1,585,768,322.40/51,642.04
  6. Step 6: Final answer
    x = 30,706.93

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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.