Home / 85,208.25-127,828.80-38,461.17

Finding the Fourth Proportional to 85,208.25, 127,828.80 and 38,461.17

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Solution

The fourth proportional to 85,208.25, 127,828.80 and 38,461.17 is: 57,699.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,208.25 : 127,828.80 = 38,461.17 : x
  2. Step 2: Convert to fraction form
    85,208.25/127,828.80 = 38,461.17/x
  3. Step 3: Cross multiply
    85,208.25x = 127,828.80 × 38,461.17
  4. Step 4: Simplify right side
    85,208.25x = 4,916,445,207.70
  5. Step 5: Solve for x
    x = 4,916,445,207.70/85,208.25
  6. Step 6: Final answer
    x = 57,699.17

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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.