Finding the Fourth Proportional to 74,801.94, 103,226.66 and 42,970.84
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Solution
The fourth proportional to 74,801.94, 103,226.66 and 42,970.84 is: 59,299.75
Step by Step Solution
- Step 1: Write the proportion equation
74,801.94 : 103,226.66 = 42,970.84 : x - Step 2: Convert to fraction form
74,801.94/103,226.66 = 42,970.84/x - Step 3: Cross multiply
74,801.94x = 103,226.66 × 42,970.84 - Step 4: Simplify right side
74,801.94x = 4,435,736,290.59 - Step 5: Solve for x
x = 4,435,736,290.59/74,801.94 - Step 6: Final answer
x = 59,299.75
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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.