Home / 74,458.38-111,688.37-19,054.38

Finding the Fourth Proportional to 74,458.38, 111,688.37 and 19,054.38

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Solution

The fourth proportional to 74,458.38, 111,688.37 and 19,054.38 is: 28,581.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,458.38 : 111,688.37 = 19,054.38 : x
  2. Step 2: Convert to fraction form
    74,458.38/111,688.37 = 19,054.38/x
  3. Step 3: Cross multiply
    74,458.38x = 111,688.37 × 19,054.38
  4. Step 4: Simplify right side
    74,458.38x = 2,128,152,132.75
  5. Step 5: Solve for x
    x = 2,128,152,132.75/74,458.38
  6. Step 6: Final answer
    x = 28,581.77

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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.