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Finding the Fourth Proportional to 56,977.02, 85,480.11 and 21,907.26

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Solution

The fourth proportional to 56,977.02, 85,480.11 and 21,907.26 is: 32,866.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,977.02 : 85,480.11 = 21,907.26 : x
  2. Step 2: Convert to fraction form
    56,977.02/85,480.11 = 21,907.26/x
  3. Step 3: Cross multiply
    56,977.02x = 85,480.11 × 21,907.26
  4. Step 4: Simplify right side
    56,977.02x = 1,872,634,994.60
  5. Step 5: Solve for x
    x = 1,872,634,994.60/56,977.02
  6. Step 6: Final answer
    x = 32,866.50

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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.