Home / 50,047.32-68,985.90-39,420.12

Finding the Fourth Proportional to 50,047.32, 68,985.90 and 39,420.12

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Solution

The fourth proportional to 50,047.32, 68,985.90 and 39,420.12 is: 54,337.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,047.32 : 68,985.90 = 39,420.12 : x
  2. Step 2: Convert to fraction form
    50,047.32/68,985.90 = 39,420.12/x
  3. Step 3: Cross multiply
    50,047.32x = 68,985.90 × 39,420.12
  4. Step 4: Simplify right side
    50,047.32x = 2,719,432,456.31
  5. Step 5: Solve for x
    x = 2,719,432,456.31/50,047.32
  6. Step 6: Final answer
    x = 54,337.22

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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.