Finding the Fourth Proportional to 74,730.17, 111,599.91 and 65,675.99
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Solution
The fourth proportional to 74,730.17, 111,599.91 and 65,675.99 is: 98,078.66
Step by Step Solution
- Step 1: Write the proportion equation
74,730.17 : 111,599.91 = 65,675.99 : x - Step 2: Convert to fraction form
74,730.17/111,599.91 = 65,675.99/x - Step 3: Cross multiply
74,730.17x = 111,599.91 × 65,675.99 - Step 4: Simplify right side
74,730.17x = 7,329,434,815.36 - Step 5: Solve for x
x = 7,329,434,815.36/74,730.17 - Step 6: Final answer
x = 98,078.66
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1.5x scale
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.