Home / 53,078.12-73,239.47-30,412.75

Finding the Fourth Proportional to 53,078.12, 73,239.47 and 30,412.75

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Solution

The fourth proportional to 53,078.12, 73,239.47 and 30,412.75 is: 41,964.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,078.12 : 73,239.47 = 30,412.75 : x
  2. Step 2: Convert to fraction form
    53,078.12/73,239.47 = 30,412.75/x
  3. Step 3: Cross multiply
    53,078.12x = 73,239.47 × 30,412.75
  4. Step 4: Simplify right side
    53,078.12x = 2,227,413,521.92
  5. Step 5: Solve for x
    x = 2,227,413,521.92/53,078.12
  6. Step 6: Final answer
    x = 41,964.82

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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.