Finding the Fourth Proportional to 74,312.16, 102,547.44 and 40,777.44
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Solution
The fourth proportional to 74,312.16, 102,547.44 and 40,777.44 is: 56,271.03
Step by Step Solution
- Step 1: Write the proportion equation
74,312.16 : 102,547.44 = 40,777.44 : x - Step 2: Convert to fraction form
74,312.16/102,547.44 = 40,777.44/x - Step 3: Cross multiply
74,312.16x = 102,547.44 × 40,777.44 - Step 4: Simplify right side
74,312.16x = 4,181,622,081.75 - Step 5: Solve for x
x = 4,181,622,081.75/74,312.16 - Step 6: Final answer
x = 56,271.03
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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.