Home / 50,316.31-75,483.59-20,718

Finding the Fourth Proportional to 50,316.31, 75,483.59 and 20,718

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Solution

The fourth proportional to 50,316.31, 75,483.59 and 20,718 is: 31,080.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,316.31 : 75,483.59 = 20,718 : x
  2. Step 2: Convert to fraction form
    50,316.31/75,483.59 = 20,718/x
  3. Step 3: Cross multiply
    50,316.31x = 75,483.59 × 20,718
  4. Step 4: Simplify right side
    50,316.31x = 1,563,869,017.62
  5. Step 5: Solve for x
    x = 1,563,869,017.62/50,316.31
  6. Step 6: Final answer
    x = 31,080.76

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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.