Home / 51,477.04-77,216.32-20,312

Finding the Fourth Proportional to 51,477.04, 77,216.32 and 20,312

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Solution

The fourth proportional to 51,477.04, 77,216.32 and 20,312 is: 30,468.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,477.04 : 77,216.32 = 20,312 : x
  2. Step 2: Convert to fraction form
    51,477.04/77,216.32 = 20,312/x
  3. Step 3: Cross multiply
    51,477.04x = 77,216.32 × 20,312
  4. Step 4: Simplify right side
    51,477.04x = 1,568,417,891.84
  5. Step 5: Solve for x
    x = 1,568,417,891.84/51,477.04
  6. Step 6: Final answer
    x = 30,468.30

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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.