Home / 85,045.19-127,567.85-38,243.39

Finding the Fourth Proportional to 85,045.19, 127,567.85 and 38,243.39

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Solution

The fourth proportional to 85,045.19, 127,567.85 and 38,243.39 is: 57,365.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,045.19 : 127,567.85 = 38,243.39 : x
  2. Step 2: Convert to fraction form
    85,045.19/127,567.85 = 38,243.39/x
  3. Step 3: Cross multiply
    85,045.19x = 127,567.85 × 38,243.39
  4. Step 4: Simplify right side
    85,045.19x = 4,878,626,209.96
  5. Step 5: Solve for x
    x = 4,878,626,209.96/85,045.19
  6. Step 6: Final answer
    x = 57,365.11

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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.