Home / 64,816.10-97,166.55-42,640.10

Finding the Fourth Proportional to 64,816.10, 97,166.55 and 42,640.10

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Solution

The fourth proportional to 64,816.10, 97,166.55 and 42,640.10 is: 63,922.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,816.10 : 97,166.55 = 42,640.10 : x
  2. Step 2: Convert to fraction form
    64,816.10/97,166.55 = 42,640.10/x
  3. Step 3: Cross multiply
    64,816.10x = 97,166.55 × 42,640.10
  4. Step 4: Simplify right side
    64,816.10x = 4,143,191,408.66
  5. Step 5: Solve for x
    x = 4,143,191,408.66/64,816.10
  6. Step 6: Final answer
    x = 63,922.26

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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.