Home / 50,990.31-70,368.75-28,329.21

Finding the Fourth Proportional to 50,990.31, 70,368.75 and 28,329.21

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Solution

The fourth proportional to 50,990.31, 70,368.75 and 28,329.21 is: 39,095.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,990.31 : 70,368.75 = 28,329.21 : x
  2. Step 2: Convert to fraction form
    50,990.31/70,368.75 = 28,329.21/x
  3. Step 3: Cross multiply
    50,990.31x = 70,368.75 × 28,329.21
  4. Step 4: Simplify right side
    50,990.31x = 1,993,491,096.19
  5. Step 5: Solve for x
    x = 1,993,491,096.19/50,990.31
  6. Step 6: Final answer
    x = 39,095.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.