Home / 74,880.14-103,334.95-40,889.32

Finding the Fourth Proportional to 74,880.14, 103,334.95 and 40,889.32

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Solution

The fourth proportional to 74,880.14, 103,334.95 and 40,889.32 is: 56,427.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,880.14 : 103,334.95 = 40,889.32 : x
  2. Step 2: Convert to fraction form
    74,880.14/103,334.95 = 40,889.32/x
  3. Step 3: Cross multiply
    74,880.14x = 103,334.95 × 40,889.32
  4. Step 4: Simplify right side
    74,880.14x = 4,225,295,837.73
  5. Step 5: Solve for x
    x = 4,225,295,837.73/74,880.14
  6. Step 6: Final answer
    x = 56,427.46

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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.