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Finding the Fourth Proportional to 85,907, 118,603.50 and 56,150.84

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Solution

The fourth proportional to 85,907, 118,603.50 and 56,150.84 is: 77,522.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,907 : 118,603.50 = 56,150.84 : x
  2. Step 2: Convert to fraction form
    85,907/118,603.50 = 56,150.84/x
  3. Step 3: Cross multiply
    85,907x = 118,603.50 × 56,150.84
  4. Step 4: Simplify right side
    85,907x = 6,659,686,151.94
  5. Step 5: Solve for x
    x = 6,659,686,151.94/85,907
  6. Step 6: Final answer
    x = 77,522.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.