Finding the Fourth Proportional to 93,466.17, 128,990.68 and 53,181.63
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Solution
The fourth proportional to 93,466.17, 128,990.68 and 53,181.63 is: 73,394.84
Step by Step Solution
- Step 1: Write the proportion equation
93,466.17 : 128,990.68 = 53,181.63 : x - Step 2: Convert to fraction form
93,466.17/128,990.68 = 53,181.63/x - Step 3: Cross multiply
93,466.17x = 128,990.68 × 53,181.63 - Step 4: Simplify right side
93,466.17x = 6,859,934,484.25 - Step 5: Solve for x
x = 6,859,934,484.25/93,466.17 - Step 6: Final answer
x = 73,394.84
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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.