Home / 85,150.12-127,726.50-28,224.16

Finding the Fourth Proportional to 85,150.12, 127,726.50 and 28,224.16

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Solution

The fourth proportional to 85,150.12, 127,726.50 and 28,224.16 is: 42,336.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,150.12 : 127,726.50 = 28,224.16 : x
  2. Step 2: Convert to fraction form
    85,150.12/127,726.50 = 28,224.16/x
  3. Step 3: Cross multiply
    85,150.12x = 127,726.50 × 28,224.16
  4. Step 4: Simplify right side
    85,150.12x = 3,604,973,172.24
  5. Step 5: Solve for x
    x = 3,604,973,172.24/85,150.12
  6. Step 6: Final answer
    x = 42,336.68

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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.