Home / 74,414.79-102,693.49-40,423.91

Finding the Fourth Proportional to 74,414.79, 102,693.49 and 40,423.91

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Solution

The fourth proportional to 74,414.79, 102,693.49 and 40,423.91 is: 55,785.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,414.79 : 102,693.49 = 40,423.91 : x
  2. Step 2: Convert to fraction form
    74,414.79/102,693.49 = 40,423.91/x
  3. Step 3: Cross multiply
    74,414.79x = 102,693.49 × 40,423.91
  4. Step 4: Simplify right side
    74,414.79x = 4,151,271,782.82
  5. Step 5: Solve for x
    x = 4,151,271,782.82/74,414.79
  6. Step 6: Final answer
    x = 55,785.57

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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.