Home / 85,001.36-127,499.40-21,818.93

Finding the Fourth Proportional to 85,001.36, 127,499.40 and 21,818.93

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Solution

The fourth proportional to 85,001.36, 127,499.40 and 21,818.93 is: 32,727.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,001.36 : 127,499.40 = 21,818.93 : x
  2. Step 2: Convert to fraction form
    85,001.36/127,499.40 = 21,818.93/x
  3. Step 3: Cross multiply
    85,001.36x = 127,499.40 × 21,818.93
  4. Step 4: Simplify right side
    85,001.36x = 2,781,899,846.15
  5. Step 5: Solve for x
    x = 2,781,899,846.15/85,001.36
  6. Step 6: Final answer
    x = 32,727.71

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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.