Home / 53,811.89-74,259.26-31,151.84

Finding the Fourth Proportional to 53,811.89, 74,259.26 and 31,151.84

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Solution

The fourth proportional to 53,811.89, 74,259.26 and 31,151.84 is: 42,988.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,811.89 : 74,259.26 = 31,151.84 : x
  2. Step 2: Convert to fraction form
    53,811.89/74,259.26 = 31,151.84/x
  3. Step 3: Cross multiply
    53,811.89x = 74,259.26 × 31,151.84
  4. Step 4: Simplify right side
    53,811.89x = 2,313,312,058.98
  5. Step 5: Solve for x
    x = 2,313,312,058.98/53,811.89
  6. Step 6: Final answer
    x = 42,988.87

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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.