Home / 50,368.98-75,568.08-20,781.30

Finding the Fourth Proportional to 50,368.98, 75,568.08 and 20,781.30

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Solution

The fourth proportional to 50,368.98, 75,568.08 and 20,781.30 is: 31,177.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,368.98 : 75,568.08 = 20,781.30 : x
  2. Step 2: Convert to fraction form
    50,368.98/75,568.08 = 20,781.30/x
  3. Step 3: Cross multiply
    50,368.98x = 75,568.08 × 20,781.30
  4. Step 4: Simplify right side
    50,368.98x = 1,570,402,940.90
  5. Step 5: Solve for x
    x = 1,570,402,940.90/50,368.98
  6. Step 6: Final answer
    x = 31,177.98

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1.5x scale

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.