Home / 85,335.24-128,004.72-26,169.60

Finding the Fourth Proportional to 85,335.24, 128,004.72 and 26,169.60

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Solution

The fourth proportional to 85,335.24, 128,004.72 and 26,169.60 is: 39,254.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,335.24 : 128,004.72 = 26,169.60 : x
  2. Step 2: Convert to fraction form
    85,335.24/128,004.72 = 26,169.60/x
  3. Step 3: Cross multiply
    85,335.24x = 128,004.72 × 26,169.60
  4. Step 4: Simplify right side
    85,335.24x = 3,349,832,320.51
  5. Step 5: Solve for x
    x = 3,349,832,320.51/85,335.24
  6. Step 6: Final answer
    x = 39,254.97

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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.