Home / 71,403.99-98,535.34-39,137.91

Finding the Fourth Proportional to 71,403.99, 98,535.34 and 39,137.91

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Solution

The fourth proportional to 71,403.99, 98,535.34 and 39,137.91 is: 54,009.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,403.99 : 98,535.34 = 39,137.91 : x
  2. Step 2: Convert to fraction form
    71,403.99/98,535.34 = 39,137.91/x
  3. Step 3: Cross multiply
    71,403.99x = 98,535.34 × 39,137.91
  4. Step 4: Simplify right side
    71,403.99x = 3,856,467,268.74
  5. Step 5: Solve for x
    x = 3,856,467,268.74/71,403.99
  6. Step 6: Final answer
    x = 54,009.13

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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.