Home / 74,458.87-111,688.08-30,085.10

Finding the Fourth Proportional to 74,458.87, 111,688.08 and 30,085.10

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Solution

The fourth proportional to 74,458.87, 111,688.08 and 30,085.10 is: 45,127.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,458.87 : 111,688.08 = 30,085.10 : x
  2. Step 2: Convert to fraction form
    74,458.87/111,688.08 = 30,085.10/x
  3. Step 3: Cross multiply
    74,458.87x = 111,688.08 × 30,085.10
  4. Step 4: Simplify right side
    74,458.87x = 3,360,147,055.61
  5. Step 5: Solve for x
    x = 3,360,147,055.61/74,458.87
  6. Step 6: Final answer
    x = 45,127.56

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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.