Home / 71,264.06-98,340.27-39,431.06

Finding the Fourth Proportional to 71,264.06, 98,340.27 and 39,431.06

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Solution

The fourth proportional to 71,264.06, 98,340.27 and 39,431.06 is: 54,412.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,264.06 : 98,340.27 = 39,431.06 : x
  2. Step 2: Convert to fraction form
    71,264.06/98,340.27 = 39,431.06/x
  3. Step 3: Cross multiply
    71,264.06x = 98,340.27 × 39,431.06
  4. Step 4: Simplify right side
    71,264.06x = 3,877,661,086.79
  5. Step 5: Solve for x
    x = 3,877,661,086.79/71,264.06
  6. Step 6: Final answer
    x = 54,412.58

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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.