Home / 77,810.45-116,745.08-30,459.38

Finding the Fourth Proportional to 77,810.45, 116,745.08 and 30,459.38

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Solution

The fourth proportional to 77,810.45, 116,745.08 and 30,459.38 is: 45,700.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,810.45 : 116,745.08 = 30,459.38 : x
  2. Step 2: Convert to fraction form
    77,810.45/116,745.08 = 30,459.38/x
  3. Step 3: Cross multiply
    77,810.45x = 116,745.08 × 30,459.38
  4. Step 4: Simplify right side
    77,810.45x = 3,555,982,018.83
  5. Step 5: Solve for x
    x = 3,555,982,018.83/77,810.45
  6. Step 6: Final answer
    x = 45,700.57

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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.