Finding the Fourth Proportional to 88,062.80, 121,526.70 and 47,776.55
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Solution
The fourth proportional to 88,062.80, 121,526.70 and 47,776.55 is: 65,931.66
Step by Step Solution
- Step 1: Write the proportion equation
88,062.80 : 121,526.70 = 47,776.55 : x - Step 2: Convert to fraction form
88,062.80/121,526.70 = 47,776.55/x - Step 3: Cross multiply
88,062.80x = 121,526.70 × 47,776.55 - Step 4: Simplify right side
88,062.80x = 5,806,125,851.25 - Step 5: Solve for x
x = 5,806,125,851.25/88,062.80 - Step 6: Final answer
x = 65,931.66
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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.