Finding the Fourth Proportional to 77,403.08, 106,822.44 and 45,578.18
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Solution
The fourth proportional to 77,403.08, 106,822.44 and 45,578.18 is: 62,901.53
Step by Step Solution
- Step 1: Write the proportion equation
77,403.08 : 106,822.44 = 45,578.18 : x - Step 2: Convert to fraction form
77,403.08/106,822.44 = 45,578.18/x - Step 3: Cross multiply
77,403.08x = 106,822.44 × 45,578.18 - Step 4: Simplify right side
77,403.08x = 4,868,771,864.25 - Step 5: Solve for x
x = 4,868,771,864.25/77,403.08 - Step 6: Final answer
x = 62,901.53
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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.