Home / 53,632.18-74,015.67-30,975.31

Finding the Fourth Proportional to 53,632.18, 74,015.67 and 30,975.31

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Solution

The fourth proportional to 53,632.18, 74,015.67 and 30,975.31 is: 42,747.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,632.18 : 74,015.67 = 30,975.31 : x
  2. Step 2: Convert to fraction form
    53,632.18/74,015.67 = 30,975.31/x
  3. Step 3: Cross multiply
    53,632.18x = 74,015.67 × 30,975.31
  4. Step 4: Simplify right side
    53,632.18x = 2,292,658,323.11
  5. Step 5: Solve for x
    x = 2,292,658,323.11/53,632.18
  6. Step 6: Final answer
    x = 42,747.81

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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.