Home / 71,038.36-98,029.98-39,206.80

Finding the Fourth Proportional to 71,038.36, 98,029.98 and 39,206.80

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Solution

The fourth proportional to 71,038.36, 98,029.98 and 39,206.80 is: 54,103.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,038.36 : 98,029.98 = 39,206.80 : x
  2. Step 2: Convert to fraction form
    71,038.36/98,029.98 = 39,206.80/x
  3. Step 3: Cross multiply
    71,038.36x = 98,029.98 × 39,206.80
  4. Step 4: Simplify right side
    71,038.36x = 3,843,441,819.86
  5. Step 5: Solve for x
    x = 3,843,441,819.86/71,038.36
  6. Step 6: Final answer
    x = 54,103.75

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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.