Home / 74,688.49-103,068.81-40,697.26

Finding the Fourth Proportional to 74,688.49, 103,068.81 and 40,697.26

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Solution

The fourth proportional to 74,688.49, 103,068.81 and 40,697.26 is: 56,161.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,688.49 : 103,068.81 = 40,697.26 : x
  2. Step 2: Convert to fraction form
    74,688.49/103,068.81 = 40,697.26/x
  3. Step 3: Cross multiply
    74,688.49x = 103,068.81 × 40,697.26
  4. Step 4: Simplify right side
    74,688.49x = 4,194,617,900.79
  5. Step 5: Solve for x
    x = 4,194,617,900.79/74,688.49
  6. Step 6: Final answer
    x = 56,161.51

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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.