Home / 85,528.49-128,292.75-26,364.20

Finding the Fourth Proportional to 85,528.49, 128,292.75 and 26,364.20

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Solution

The fourth proportional to 85,528.49, 128,292.75 and 26,364.20 is: 39,546.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,528.49 : 128,292.75 = 26,364.20 : x
  2. Step 2: Convert to fraction form
    85,528.49/128,292.75 = 26,364.20/x
  3. Step 3: Cross multiply
    85,528.49x = 128,292.75 × 26,364.20
  4. Step 4: Simplify right side
    85,528.49x = 3,382,335,078.09
  5. Step 5: Solve for x
    x = 3,382,335,078.09/85,528.49
  6. Step 6: Final answer
    x = 39,546.30

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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.