Home / 85,996.27-128,989.85-26,825.16

Finding the Fourth Proportional to 85,996.27, 128,989.85 and 26,825.16

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Solution

The fourth proportional to 85,996.27, 128,989.85 and 26,825.16 is: 40,236.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,996.27 : 128,989.85 = 26,825.16 : x
  2. Step 2: Convert to fraction form
    85,996.27/128,989.85 = 26,825.16/x
  3. Step 3: Cross multiply
    85,996.27x = 128,989.85 × 26,825.16
  4. Step 4: Simplify right side
    85,996.27x = 3,460,173,364.63
  5. Step 5: Solve for x
    x = 3,460,173,364.63/85,996.27
  6. Step 6: Final answer
    x = 40,236.32

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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.