Home / 74,442.31-111,662.75-30,068.28

Finding the Fourth Proportional to 74,442.31, 111,662.75 and 30,068.28

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Solution

The fourth proportional to 74,442.31, 111,662.75 and 30,068.28 is: 45,102.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,442.31 : 111,662.75 = 30,068.28 : x
  2. Step 2: Convert to fraction form
    74,442.31/111,662.75 = 30,068.28/x
  3. Step 3: Cross multiply
    74,442.31x = 111,662.75 × 30,068.28
  4. Step 4: Simplify right side
    74,442.31x = 3,357,506,907.74
  5. Step 5: Solve for x
    x = 3,357,506,907.74/74,442.31
  6. Step 6: Final answer
    x = 45,102.13

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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.