Home / 71,039.89-98,035.23-38,774.80

Finding the Fourth Proportional to 71,039.89, 98,035.23 and 38,774.80

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Solution

The fourth proportional to 71,039.89, 98,035.23 and 38,774.80 is: 53,509.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,039.89 : 98,035.23 = 38,774.80 : x
  2. Step 2: Convert to fraction form
    71,039.89/98,035.23 = 38,774.80/x
  3. Step 3: Cross multiply
    71,039.89x = 98,035.23 × 38,774.80
  4. Step 4: Simplify right side
    71,039.89x = 3,801,296,436.20
  5. Step 5: Solve for x
    x = 3,801,296,436.20/71,039.89
  6. Step 6: Final answer
    x = 53,509.32

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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.