Home / 60,571.16-90,857.11-21,128.32

Finding the Fourth Proportional to 60,571.16, 90,857.11 and 21,128.32

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Solution

The fourth proportional to 60,571.16, 90,857.11 and 21,128.32 is: 31,692.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,571.16 : 90,857.11 = 21,128.32 : x
  2. Step 2: Convert to fraction form
    60,571.16/90,857.11 = 21,128.32/x
  3. Step 3: Cross multiply
    60,571.16x = 90,857.11 × 21,128.32
  4. Step 4: Simplify right side
    60,571.16x = 1,919,658,094.36
  5. Step 5: Solve for x
    x = 1,919,658,094.36/60,571.16
  6. Step 6: Final answer
    x = 31,692.61

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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.