Finding the Fourth Proportional to 74,038.98, 110,476.95 and 69,520.08
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Solution
The fourth proportional to 74,038.98, 110,476.95 and 69,520.08 is: 103,734.09
Step by Step Solution
- Step 1: Write the proportion equation
74,038.98 : 110,476.95 = 69,520.08 : x - Step 2: Convert to fraction form
74,038.98/110,476.95 = 69,520.08/x - Step 3: Cross multiply
74,038.98x = 110,476.95 × 69,520.08 - Step 4: Simplify right side
74,038.98x = 7,680,366,402.16 - Step 5: Solve for x
x = 7,680,366,402.16/74,038.98 - Step 6: Final answer
x = 103,734.09
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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.