Finding the Fourth Proportional to 88,175.79, 121,683.47 and 47,889.93
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Solution
The fourth proportional to 88,175.79, 121,683.47 and 47,889.93 is: 66,088.58
Step by Step Solution
- Step 1: Write the proportion equation
88,175.79 : 121,683.47 = 47,889.93 : x - Step 2: Convert to fraction form
88,175.79/121,683.47 = 47,889.93/x - Step 3: Cross multiply
88,175.79x = 121,683.47 × 47,889.93 - Step 4: Simplify right side
88,175.79x = 5,827,413,077.32 - Step 5: Solve for x
x = 5,827,413,077.32/88,175.79 - Step 6: Final answer
x = 66,088.58
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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.