Home / 85,571.19-128,369.48-29,425.77

Finding the Fourth Proportional to 85,571.19, 128,369.48 and 29,425.77

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Solution

The fourth proportional to 85,571.19, 128,369.48 and 29,425.77 is: 44,143.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,571.19 : 128,369.48 = 29,425.77 : x
  2. Step 2: Convert to fraction form
    85,571.19/128,369.48 = 29,425.77/x
  3. Step 3: Cross multiply
    85,571.19x = 128,369.48 × 29,425.77
  4. Step 4: Simplify right side
    85,571.19x = 3,777,370,646.37
  5. Step 5: Solve for x
    x = 3,777,370,646.37/85,571.19
  6. Step 6: Final answer
    x = 44,143.02

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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.