Home / 78,437.07-108,271.73-48,262.86

Finding the Fourth Proportional to 78,437.07, 108,271.73 and 48,262.86

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Solution

The fourth proportional to 78,437.07, 108,271.73 and 48,262.86 is: 66,620.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,437.07 : 108,271.73 = 48,262.86 : x
  2. Step 2: Convert to fraction form
    78,437.07/108,271.73 = 48,262.86/x
  3. Step 3: Cross multiply
    78,437.07x = 108,271.73 × 48,262.86
  4. Step 4: Simplify right side
    78,437.07x = 5,225,503,105.63
  5. Step 5: Solve for x
    x = 5,225,503,105.63/78,437.07
  6. Step 6: Final answer
    x = 66,620.33

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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.