Home / 53,939.36-74,438.16-30,065.12

Finding the Fourth Proportional to 53,939.36, 74,438.16 and 30,065.12

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Solution

The fourth proportional to 53,939.36, 74,438.16 and 30,065.12 is: 41,490.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,939.36 : 74,438.16 = 30,065.12 : x
  2. Step 2: Convert to fraction form
    53,939.36/74,438.16 = 30,065.12/x
  3. Step 3: Cross multiply
    53,939.36x = 74,438.16 × 30,065.12
  4. Step 4: Simplify right side
    53,939.36x = 2,237,992,212.98
  5. Step 5: Solve for x
    x = 2,237,992,212.98/53,939.36
  6. Step 6: Final answer
    x = 41,490.89

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1.5x scale

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.