Home / 85,235.28-127,858.04-26,071.46

Finding the Fourth Proportional to 85,235.28, 127,858.04 and 26,071.46

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Solution

The fourth proportional to 85,235.28, 127,858.04 and 26,071.46 is: 39,108.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,235.28 : 127,858.04 = 26,071.46 : x
  2. Step 2: Convert to fraction form
    85,235.28/127,858.04 = 26,071.46/x
  3. Step 3: Cross multiply
    85,235.28x = 127,858.04 × 26,071.46
  4. Step 4: Simplify right side
    85,235.28x = 3,333,445,583.13
  5. Step 5: Solve for x
    x = 3,333,445,583.13/85,235.28
  6. Step 6: Final answer
    x = 39,108.76

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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.