Home / 53,911-74,398.62-30,038.68

Finding the Fourth Proportional to 53,911, 74,398.62 and 30,038.68

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Solution

The fourth proportional to 53,911, 74,398.62 and 30,038.68 is: 41,454.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,911 : 74,398.62 = 30,038.68 : x
  2. Step 2: Convert to fraction form
    53,911/74,398.62 = 30,038.68/x
  3. Step 3: Cross multiply
    53,911x = 74,398.62 × 30,038.68
  4. Step 4: Simplify right side
    53,911x = 2,234,836,338.62
  5. Step 5: Solve for x
    x = 2,234,836,338.62/53,911
  6. Step 6: Final answer
    x = 41,454.18

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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.