Home / 53,915.74-74,403.73-31,267.87

Finding the Fourth Proportional to 53,915.74, 74,403.73 and 31,267.87

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Solution

The fourth proportional to 53,915.74, 74,403.73 and 31,267.87 is: 43,149.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,915.74 : 74,403.73 = 31,267.87 : x
  2. Step 2: Convert to fraction form
    53,915.74/74,403.73 = 31,267.87/x
  3. Step 3: Cross multiply
    53,915.74x = 74,403.73 × 31,267.87
  4. Step 4: Simplify right side
    53,915.74x = 2,326,446,157.16
  5. Step 5: Solve for x
    x = 2,326,446,157.16/53,915.74
  6. Step 6: Final answer
    x = 43,149.67

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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.