Home / 85,826.88-128,470.59-59,451.66

Finding the Fourth Proportional to 85,826.88, 128,470.59 and 59,451.66

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Solution

The fourth proportional to 85,826.88, 128,470.59 and 59,451.66 is: 88,990.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,826.88 : 128,470.59 = 59,451.66 : x
  2. Step 2: Convert to fraction form
    85,826.88/128,470.59 = 59,451.66/x
  3. Step 3: Cross multiply
    85,826.88x = 128,470.59 × 59,451.66
  4. Step 4: Simplify right side
    85,826.88x = 7,637,789,836.68
  5. Step 5: Solve for x
    x = 7,637,789,836.68/85,826.88
  6. Step 6: Final answer
    x = 88,990.65

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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.