Home / 71,206.25-98,266.59-39,377.21

Finding the Fourth Proportional to 71,206.25, 98,266.59 and 39,377.21

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Solution

The fourth proportional to 71,206.25, 98,266.59 and 39,377.21 is: 54,341.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,206.25 : 98,266.59 = 39,377.21 : x
  2. Step 2: Convert to fraction form
    71,206.25/98,266.59 = 39,377.21/x
  3. Step 3: Cross multiply
    71,206.25x = 98,266.59 × 39,377.21
  4. Step 4: Simplify right side
    71,206.25x = 3,869,463,659.08
  5. Step 5: Solve for x
    x = 3,869,463,659.08/71,206.25
  6. Step 6: Final answer
    x = 54,341.63

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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.