Home / 77,018-115,510.40-44,975.68

Finding the Fourth Proportional to 77,018, 115,510.40 and 44,975.68

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Solution

The fourth proportional to 77,018, 115,510.40 and 44,975.68 is: 67,453.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,018 : 115,510.40 = 44,975.68 : x
  2. Step 2: Convert to fraction form
    77,018/115,510.40 = 44,975.68/x
  3. Step 3: Cross multiply
    77,018x = 115,510.40 × 44,975.68
  4. Step 4: Simplify right side
    77,018x = 5,195,158,787.07
  5. Step 5: Solve for x
    x = 5,195,158,787.07/77,018
  6. Step 6: Final answer
    x = 67,453.83

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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.