Home / 88,621.07-122,316.93-56,349.45

Finding the Fourth Proportional to 88,621.07, 122,316.93 and 56,349.45

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Solution

The fourth proportional to 88,621.07, 122,316.93 and 56,349.45 is: 77,774.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,621.07 : 122,316.93 = 56,349.45 : x
  2. Step 2: Convert to fraction form
    88,621.07/122,316.93 = 56,349.45/x
  3. Step 3: Cross multiply
    88,621.07x = 122,316.93 × 56,349.45
  4. Step 4: Simplify right side
    88,621.07x = 6,892,491,896.11
  5. Step 5: Solve for x
    x = 6,892,491,896.11/88,621.07
  6. Step 6: Final answer
    x = 77,774.87

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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.