Home / 77,170.50-106,508.94-45,339.39

Finding the Fourth Proportional to 77,170.50, 106,508.94 and 45,339.39

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Solution

The fourth proportional to 77,170.50, 106,508.94 and 45,339.39 is: 62,576.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,170.50 : 106,508.94 = 45,339.39 : x
  2. Step 2: Convert to fraction form
    77,170.50/106,508.94 = 45,339.39/x
  3. Step 3: Cross multiply
    77,170.50x = 106,508.94 × 45,339.39
  4. Step 4: Simplify right side
    77,170.50x = 4,829,050,369.15
  5. Step 5: Solve for x
    x = 4,829,050,369.15/77,170.50
  6. Step 6: Final answer
    x = 62,576.38

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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.