Home / 53,880.56-74,389.21-39,708.72

Finding the Fourth Proportional to 53,880.56, 74,389.21 and 39,708.72

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Solution

The fourth proportional to 53,880.56, 74,389.21 and 39,708.72 is: 54,823.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,880.56 : 74,389.21 = 39,708.72 : x
  2. Step 2: Convert to fraction form
    53,880.56/74,389.21 = 39,708.72/x
  3. Step 3: Cross multiply
    53,880.56x = 74,389.21 × 39,708.72
  4. Step 4: Simplify right side
    53,880.56x = 2,953,899,839.69
  5. Step 5: Solve for x
    x = 2,953,899,839.69/53,880.56
  6. Step 6: Final answer
    x = 54,823.11

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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.