Home / 42,762.20-64,220.10-41,379.80

Finding the Fourth Proportional to 42,762.20, 64,220.10 and 41,379.80

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Solution

The fourth proportional to 42,762.20, 64,220.10 and 41,379.80 is: 62,144.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,762.20 : 64,220.10 = 41,379.80 : x
  2. Step 2: Convert to fraction form
    42,762.20/64,220.10 = 41,379.80/x
  3. Step 3: Cross multiply
    42,762.20x = 64,220.10 × 41,379.80
  4. Step 4: Simplify right side
    42,762.20x = 2,657,414,893.98
  5. Step 5: Solve for x
    x = 2,657,414,893.98/42,762.20
  6. Step 6: Final answer
    x = 62,144.02

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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.