Home / 53,988.69-74,487.87-31,319.82

Finding the Fourth Proportional to 53,988.69, 74,487.87 and 31,319.82

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Solution

The fourth proportional to 53,988.69, 74,487.87 and 31,319.82 is: 43,211.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,988.69 : 74,487.87 = 31,319.82 : x
  2. Step 2: Convert to fraction form
    53,988.69/74,487.87 = 31,319.82/x
  3. Step 3: Cross multiply
    53,988.69x = 74,487.87 × 31,319.82
  4. Step 4: Simplify right side
    53,988.69x = 2,332,946,680.58
  5. Step 5: Solve for x
    x = 2,332,946,680.58/53,988.69
  6. Step 6: Final answer
    x = 43,211.77

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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.