Home / 66,543.95-99,766.72-40,242.85

Finding the Fourth Proportional to 66,543.95, 99,766.72 and 40,242.85

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Solution

The fourth proportional to 66,543.95, 99,766.72 and 40,242.85 is: 60,334.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,543.95 : 99,766.72 = 40,242.85 : x
  2. Step 2: Convert to fraction form
    66,543.95/99,766.72 = 40,242.85/x
  3. Step 3: Cross multiply
    66,543.95x = 99,766.72 × 40,242.85
  4. Step 4: Simplify right side
    66,543.95x = 4,014,896,999.14
  5. Step 5: Solve for x
    x = 4,014,896,999.14/66,543.95
  6. Step 6: Final answer
    x = 60,334.51

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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.