Finding the Fourth Proportional to 93,981.44, 129,547.20 and 71,229.44
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Solution
The fourth proportional to 93,981.44, 129,547.20 and 71,229.44 is: 98,185.07
Step by Step Solution
- Step 1: Write the proportion equation
93,981.44 : 129,547.20 = 71,229.44 : x - Step 2: Convert to fraction form
93,981.44/129,547.20 = 71,229.44/x - Step 3: Cross multiply
93,981.44x = 129,547.20 × 71,229.44 - Step 4: Simplify right side
93,981.44x = 9,227,574,509.57 - Step 5: Solve for x
x = 9,227,574,509.57/93,981.44 - Step 6: Final answer
x = 98,185.07
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1.5x scale
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.