Home / 71,315.31-98,415.14-39,486.27

Finding the Fourth Proportional to 71,315.31, 98,415.14 and 39,486.27

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Solution

The fourth proportional to 71,315.31, 98,415.14 and 39,486.27 is: 54,491.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,315.31 : 98,415.14 = 39,486.27 : x
  2. Step 2: Convert to fraction form
    71,315.31/98,415.14 = 39,486.27/x
  3. Step 3: Cross multiply
    71,315.31x = 98,415.14 × 39,486.27
  4. Step 4: Simplify right side
    71,315.31x = 3,886,046,790.13
  5. Step 5: Solve for x
    x = 3,886,046,790.13/71,315.31
  6. Step 6: Final answer
    x = 54,491.06

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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.