Finding the Fourth Proportional to 74,504.08, 102,813.60 and 40,970.08
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Solution
The fourth proportional to 74,504.08, 102,813.60 and 40,970.08 is: 56,537.59
Step by Step Solution
- Step 1: Write the proportion equation
74,504.08 : 102,813.60 = 40,970.08 : x - Step 2: Convert to fraction form
74,504.08/102,813.60 = 40,970.08/x - Step 3: Cross multiply
74,504.08x = 102,813.60 × 40,970.08 - Step 4: Simplify right side
74,504.08x = 4,212,281,417.09 - Step 5: Solve for x
x = 4,212,281,417.09/74,504.08 - Step 6: Final answer
x = 56,537.59
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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.