Home / 69,782.37-96,302.21-39,980.13

Finding the Fourth Proportional to 69,782.37, 96,302.21 and 39,980.13

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Solution

The fourth proportional to 69,782.37, 96,302.21 and 39,980.13 is: 55,174.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,782.37 : 96,302.21 = 39,980.13 : x
  2. Step 2: Convert to fraction form
    69,782.37/96,302.21 = 39,980.13/x
  3. Step 3: Cross multiply
    69,782.37x = 96,302.21 × 39,980.13
  4. Step 4: Simplify right side
    69,782.37x = 3,850,174,675.19
  5. Step 5: Solve for x
    x = 3,850,174,675.19/69,782.37
  6. Step 6: Final answer
    x = 55,174.03

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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.