Home / 85,393.17-128,106.50-32,798.61

Finding the Fourth Proportional to 85,393.17, 128,106.50 and 32,798.61

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Solution

The fourth proportional to 85,393.17, 128,106.50 and 32,798.61 is: 49,204.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,393.17 : 128,106.50 = 32,798.61 : x
  2. Step 2: Convert to fraction form
    85,393.17/128,106.50 = 32,798.61/x
  3. Step 3: Cross multiply
    85,393.17x = 128,106.50 × 32,798.61
  4. Step 4: Simplify right side
    85,393.17x = 4,201,714,967.97
  5. Step 5: Solve for x
    x = 4,201,714,967.97/85,393.17
  6. Step 6: Final answer
    x = 49,204.34

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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.