Finding the Fourth Proportional to 76,901.51, 115,345.98 and 34,220.18
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Solution
The fourth proportional to 76,901.51, 115,345.98 and 34,220.18 is: 51,327.47
Step by Step Solution
- Step 1: Write the proportion equation
76,901.51 : 115,345.98 = 34,220.18 : x - Step 2: Convert to fraction form
76,901.51/115,345.98 = 34,220.18/x - Step 3: Cross multiply
76,901.51x = 115,345.98 × 34,220.18 - Step 4: Simplify right side
76,901.51x = 3,947,159,621.15 - Step 5: Solve for x
x = 3,947,159,621.15/76,901.51 - Step 6: Final answer
x = 51,327.47
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.