Home / 70,090.08-96,715.80-39,879.24

Finding the Fourth Proportional to 70,090.08, 96,715.80 and 39,879.24

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Solution

The fourth proportional to 70,090.08, 96,715.80 and 39,879.24 is: 55,028.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,090.08 : 96,715.80 = 39,879.24 : x
  2. Step 2: Convert to fraction form
    70,090.08/96,715.80 = 39,879.24/x
  3. Step 3: Cross multiply
    70,090.08x = 96,715.80 × 39,879.24
  4. Step 4: Simplify right side
    70,090.08x = 3,856,952,599.99
  5. Step 5: Solve for x
    x = 3,856,952,599.99/70,090.08
  6. Step 6: Final answer
    x = 55,028.51

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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.