Finding the Fourth Proportional to 74,292.93, 110,854.32 and 69,772.68
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Solution
The fourth proportional to 74,292.93, 110,854.32 and 69,772.68 is: 104,109.54
Step by Step Solution
- Step 1: Write the proportion equation
74,292.93 : 110,854.32 = 69,772.68 : x - Step 2: Convert to fraction form
74,292.93/110,854.32 = 69,772.68/x - Step 3: Cross multiply
74,292.93x = 110,854.32 × 69,772.68 - Step 4: Simplify right side
74,292.93x = 7,734,602,995.98 - Step 5: Solve for x
x = 7,734,602,995.98/74,292.93 - Step 6: Final answer
x = 104,109.54
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.