Home / 80,686.58-111,302.03-48,412.85

Finding the Fourth Proportional to 80,686.58, 111,302.03 and 48,412.85

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Solution

The fourth proportional to 80,686.58, 111,302.03 and 48,412.85 is: 66,782.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,686.58 : 111,302.03 = 48,412.85 : x
  2. Step 2: Convert to fraction form
    80,686.58/111,302.03 = 48,412.85/x
  3. Step 3: Cross multiply
    80,686.58x = 111,302.03 × 48,412.85
  4. Step 4: Simplify right side
    80,686.58x = 5,388,447,684.51
  5. Step 5: Solve for x
    x = 5,388,447,684.51/80,686.58
  6. Step 6: Final answer
    x = 66,782.46

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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.