Home / 50,643.10-75,903.90-21,045.70

Finding the Fourth Proportional to 50,643.10, 75,903.90 and 21,045.70

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Solution

The fourth proportional to 50,643.10, 75,903.90 and 21,045.70 is: 31,543.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,643.10 : 75,903.90 = 21,045.70 : x
  2. Step 2: Convert to fraction form
    50,643.10/75,903.90 = 21,045.70/x
  3. Step 3: Cross multiply
    50,643.10x = 75,903.90 × 21,045.70
  4. Step 4: Simplify right side
    50,643.10x = 1,597,450,708.23
  5. Step 5: Solve for x
    x = 1,597,450,708.23/50,643.10
  6. Step 6: Final answer
    x = 31,543.30

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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.