Finding the Fourth Proportional to 83,734.64, 115,547.08 and 47,916.44
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Solution
The fourth proportional to 83,734.64, 115,547.08 and 47,916.44 is: 66,120.84
Step by Step Solution
- Step 1: Write the proportion equation
83,734.64 : 115,547.08 = 47,916.44 : x - Step 2: Convert to fraction form
83,734.64/115,547.08 = 47,916.44/x - Step 3: Cross multiply
83,734.64x = 115,547.08 × 47,916.44 - Step 4: Simplify right side
83,734.64x = 5,536,604,726.00 - Step 5: Solve for x
x = 5,536,604,726.00/83,734.64 - Step 6: Final answer
x = 66,120.84
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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.