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Finding the Fourth Proportional to 76,879.98, 106,094.88 and 45,049.14

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Solution

The fourth proportional to 76,879.98, 106,094.88 and 45,049.14 is: 62,168.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,879.98 : 106,094.88 = 45,049.14 : x
  2. Step 2: Convert to fraction form
    76,879.98/106,094.88 = 45,049.14/x
  3. Step 3: Cross multiply
    76,879.98x = 106,094.88 × 45,049.14
  4. Step 4: Simplify right side
    76,879.98x = 4,779,483,102.40
  5. Step 5: Solve for x
    x = 4,779,483,102.40/76,879.98
  6. Step 6: Final answer
    x = 62,168.11

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1.5x scale

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.