Home / 55,821.04-77,033.72-30,670

Finding the Fourth Proportional to 55,821.04, 77,033.72 and 30,670

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Solution

The fourth proportional to 55,821.04, 77,033.72 and 30,670 is: 42,324.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,821.04 : 77,033.72 = 30,670 : x
  2. Step 2: Convert to fraction form
    55,821.04/77,033.72 = 30,670/x
  3. Step 3: Cross multiply
    55,821.04x = 77,033.72 × 30,670
  4. Step 4: Simplify right side
    55,821.04x = 2,362,624,192.40
  5. Step 5: Solve for x
    x = 2,362,624,192.40/55,821.04
  6. Step 6: Final answer
    x = 42,324.98

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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.