Home / 54,303.81-74,941.28-30,429.60

Finding the Fourth Proportional to 54,303.81, 74,941.28 and 30,429.60

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Solution

The fourth proportional to 54,303.81, 74,941.28 and 30,429.60 is: 41,993.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,303.81 : 74,941.28 = 30,429.60 : x
  2. Step 2: Convert to fraction form
    54,303.81/74,941.28 = 30,429.60/x
  3. Step 3: Cross multiply
    54,303.81x = 74,941.28 × 30,429.60
  4. Step 4: Simplify right side
    54,303.81x = 2,280,433,173.89
  5. Step 5: Solve for x
    x = 2,280,433,173.89/54,303.81
  6. Step 6: Final answer
    x = 41,993.98

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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.