Home / 71,299.36-98,394.32-39,036.80

Finding the Fourth Proportional to 71,299.36, 98,394.32 and 39,036.80

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Solution

The fourth proportional to 71,299.36, 98,394.32 and 39,036.80 is: 53,871.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,299.36 : 98,394.32 = 39,036.80 : x
  2. Step 2: Convert to fraction form
    71,299.36/98,394.32 = 39,036.80/x
  3. Step 3: Cross multiply
    71,299.36x = 98,394.32 × 39,036.80
  4. Step 4: Simplify right side
    71,299.36x = 3,840,999,390.98
  5. Step 5: Solve for x
    x = 3,840,999,390.98/71,299.36
  6. Step 6: Final answer
    x = 53,871.44

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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.