Home / 79,099.10-118,572.32-26,479.34

Finding the Fourth Proportional to 79,099.10, 118,572.32 and 26,479.34

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Solution

The fourth proportional to 79,099.10, 118,572.32 and 26,479.34 is: 39,693.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,099.10 : 118,572.32 = 26,479.34 : x
  2. Step 2: Convert to fraction form
    79,099.10/118,572.32 = 26,479.34/x
  3. Step 3: Cross multiply
    79,099.10x = 118,572.32 × 26,479.34
  4. Step 4: Simplify right side
    79,099.10x = 3,139,716,775.87
  5. Step 5: Solve for x
    x = 3,139,716,775.87/79,099.10
  6. Step 6: Final answer
    x = 39,693.46

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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.