Home / 56,865.56-78,506.56-39,434.36

Finding the Fourth Proportional to 56,865.56, 78,506.56 and 39,434.36

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Solution

The fourth proportional to 56,865.56, 78,506.56 and 39,434.36 is: 54,441.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,865.56 : 78,506.56 = 39,434.36 : x
  2. Step 2: Convert to fraction form
    56,865.56/78,506.56 = 39,434.36/x
  3. Step 3: Cross multiply
    56,865.56x = 78,506.56 × 39,434.36
  4. Step 4: Simplify right side
    56,865.56x = 3,095,855,949.40
  5. Step 5: Solve for x
    x = 3,095,855,949.40/56,865.56
  6. Step 6: Final answer
    x = 54,441.67

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1.5x scale

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.