Home / 56,711.85-78,258.33-33,740.40

Finding the Fourth Proportional to 56,711.85, 78,258.33 and 33,740.40

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Solution

The fourth proportional to 56,711.85, 78,258.33 and 33,740.40 is: 46,559.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,711.85 : 78,258.33 = 33,740.40 : x
  2. Step 2: Convert to fraction form
    56,711.85/78,258.33 = 33,740.40/x
  3. Step 3: Cross multiply
    56,711.85x = 78,258.33 × 33,740.40
  4. Step 4: Simplify right side
    56,711.85x = 2,640,467,357.53
  5. Step 5: Solve for x
    x = 2,640,467,357.53/56,711.85
  6. Step 6: Final answer
    x = 46,559.36

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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.