Home / 74,428.26-102,711.20-40,436.46

Finding the Fourth Proportional to 74,428.26, 102,711.20 and 40,436.46

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Solution

The fourth proportional to 74,428.26, 102,711.20 and 40,436.46 is: 55,802.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,428.26 : 102,711.20 = 40,436.46 : x
  2. Step 2: Convert to fraction form
    74,428.26/102,711.20 = 40,436.46/x
  3. Step 3: Cross multiply
    74,428.26x = 102,711.20 × 40,436.46
  4. Step 4: Simplify right side
    74,428.26x = 4,153,277,330.35
  5. Step 5: Solve for x
    x = 4,153,277,330.35/74,428.26
  6. Step 6: Final answer
    x = 55,802.42

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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.