Home / 85,862.03-128,778.47-22,682.84

Finding the Fourth Proportional to 85,862.03, 128,778.47 and 22,682.84

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Solution

The fourth proportional to 85,862.03, 128,778.47 and 22,682.84 is: 34,020.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,862.03 : 128,778.47 = 22,682.84 : x
  2. Step 2: Convert to fraction form
    85,862.03/128,778.47 = 22,682.84/x
  3. Step 3: Cross multiply
    85,862.03x = 128,778.47 × 22,682.84
  4. Step 4: Simplify right side
    85,862.03x = 2,921,061,317.04
  5. Step 5: Solve for x
    x = 2,921,061,317.04/85,862.03
  6. Step 6: Final answer
    x = 34,020.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.