Home / 53,986.43-74,484.77-31,317.57

Finding the Fourth Proportional to 53,986.43, 74,484.77 and 31,317.57

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Solution

The fourth proportional to 53,986.43, 74,484.77 and 31,317.57 is: 43,208.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,986.43 : 74,484.77 = 31,317.57 : x
  2. Step 2: Convert to fraction form
    53,986.43/74,484.77 = 31,317.57/x
  3. Step 3: Cross multiply
    53,986.43x = 74,484.77 × 31,317.57
  4. Step 4: Simplify right side
    53,986.43x = 2,332,681,841.82
  5. Step 5: Solve for x
    x = 2,332,681,841.82/53,986.43
  6. Step 6: Final answer
    x = 43,208.67

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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.