Home / 85,710.05-128,647.99-41,368.01

Finding the Fourth Proportional to 85,710.05, 128,647.99 and 41,368.01

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Solution

The fourth proportional to 85,710.05, 128,647.99 and 41,368.01 is: 62,092.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,710.05 : 128,647.99 = 41,368.01 : x
  2. Step 2: Convert to fraction form
    85,710.05/128,647.99 = 41,368.01/x
  3. Step 3: Cross multiply
    85,710.05x = 128,647.99 × 41,368.01
  4. Step 4: Simplify right side
    85,710.05x = 5,321,911,336.80
  5. Step 5: Solve for x
    x = 5,321,911,336.80/85,710.05
  6. Step 6: Final answer
    x = 62,092.03

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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.