Finding the Fourth Proportional to 74,618.19, 103,041.52 and 47,403.06
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Solution
The fourth proportional to 74,618.19, 103,041.52 and 47,403.06 is: 65,459.69
Step by Step Solution
- Step 1: Write the proportion equation
74,618.19 : 103,041.52 = 47,403.06 : x - Step 2: Convert to fraction form
74,618.19/103,041.52 = 47,403.06/x - Step 3: Cross multiply
74,618.19x = 103,041.52 × 47,403.06 - Step 4: Simplify right side
74,618.19x = 4,884,483,355.05 - Step 5: Solve for x
x = 4,884,483,355.05/74,618.19 - Step 6: Final answer
x = 65,459.69
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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.