Home / 50,447.90-75,681.08-20,868.05

Finding the Fourth Proportional to 50,447.90, 75,681.08 and 20,868.05

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Solution

The fourth proportional to 50,447.90, 75,681.08 and 20,868.05 is: 31,305.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,447.90 : 75,681.08 = 20,868.05 : x
  2. Step 2: Convert to fraction form
    50,447.90/75,681.08 = 20,868.05/x
  3. Step 3: Cross multiply
    50,447.90x = 75,681.08 × 20,868.05
  4. Step 4: Simplify right side
    50,447.90x = 1,579,316,078.75
  5. Step 5: Solve for x
    x = 1,579,316,078.75/50,447.90
  6. Step 6: Final answer
    x = 31,305.89

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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.