Home / 52,621.69-78,548.67-45,978.61

Finding the Fourth Proportional to 52,621.69, 78,548.67 and 45,978.61

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Solution

The fourth proportional to 52,621.69, 78,548.67 and 45,978.61 is: 68,632.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,621.69 : 78,548.67 = 45,978.61 : x
  2. Step 2: Convert to fraction form
    52,621.69/78,548.67 = 45,978.61/x
  3. Step 3: Cross multiply
    52,621.69x = 78,548.67 × 45,978.61
  4. Step 4: Simplify right side
    52,621.69x = 3,611,558,663.95
  5. Step 5: Solve for x
    x = 3,611,558,663.95/52,621.69
  6. Step 6: Final answer
    x = 68,632.51

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.