Home / 85,329.24-128,018.46-26,173.62

Finding the Fourth Proportional to 85,329.24, 128,018.46 and 26,173.62

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Solution

The fourth proportional to 85,329.24, 128,018.46 and 26,173.62 is: 39,267.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,329.24 : 128,018.46 = 26,173.62 : x
  2. Step 2: Convert to fraction form
    85,329.24/128,018.46 = 26,173.62/x
  3. Step 3: Cross multiply
    85,329.24x = 128,018.46 × 26,173.62
  4. Step 4: Simplify right side
    85,329.24x = 3,350,706,525.03
  5. Step 5: Solve for x
    x = 3,350,706,525.03/85,329.24
  6. Step 6: Final answer
    x = 39,267.98

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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.