Home / 74,872.02-103,322.61-40,880.40

Finding the Fourth Proportional to 74,872.02, 103,322.61 and 40,880.40

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Solution

The fourth proportional to 74,872.02, 103,322.61 and 40,880.40 is: 56,414.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,872.02 : 103,322.61 = 40,880.40 : x
  2. Step 2: Convert to fraction form
    74,872.02/103,322.61 = 40,880.40/x
  3. Step 3: Cross multiply
    74,872.02x = 103,322.61 × 40,880.40
  4. Step 4: Simplify right side
    74,872.02x = 4,223,869,421.44
  5. Step 5: Solve for x
    x = 4,223,869,421.44/74,872.02
  6. Step 6: Final answer
    x = 56,414.52

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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.