Home / 85,371.04-128,063.40-23,040.64

Finding the Fourth Proportional to 85,371.04, 128,063.40 and 23,040.64

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Solution

The fourth proportional to 85,371.04, 128,063.40 and 23,040.64 is: 34,562.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,371.04 : 128,063.40 = 23,040.64 : x
  2. Step 2: Convert to fraction form
    85,371.04/128,063.40 = 23,040.64/x
  3. Step 3: Cross multiply
    85,371.04x = 128,063.40 × 23,040.64
  4. Step 4: Simplify right side
    85,371.04x = 2,950,662,696.58
  5. Step 5: Solve for x
    x = 2,950,662,696.58/85,371.04
  6. Step 6: Final answer
    x = 34,562.81

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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.