Home / 85,121.49-127,661.70-37,710.36

Finding the Fourth Proportional to 85,121.49, 127,661.70 and 37,710.36

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Solution

The fourth proportional to 85,121.49, 127,661.70 and 37,710.36 is: 56,556.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,121.49 : 127,661.70 = 37,710.36 : x
  2. Step 2: Convert to fraction form
    85,121.49/127,661.70 = 37,710.36/x
  3. Step 3: Cross multiply
    85,121.49x = 127,661.70 × 37,710.36
  4. Step 4: Simplify right side
    85,121.49x = 4,814,168,665.21
  5. Step 5: Solve for x
    x = 4,814,168,665.21/85,121.49
  6. Step 6: Final answer
    x = 56,556.44

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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.