Home / 50,316.12-75,456.90-20,720.34

Finding the Fourth Proportional to 50,316.12, 75,456.90 and 20,720.34

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Solution

The fourth proportional to 50,316.12, 75,456.90 and 20,720.34 is: 31,073.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,316.12 : 75,456.90 = 20,720.34 : x
  2. Step 2: Convert to fraction form
    50,316.12/75,456.90 = 20,720.34/x
  3. Step 3: Cross multiply
    50,316.12x = 75,456.90 × 20,720.34
  4. Step 4: Simplify right side
    50,316.12x = 1,563,492,623.35
  5. Step 5: Solve for x
    x = 1,563,492,623.35/50,316.12
  6. Step 6: Final answer
    x = 31,073.39

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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.