Finding the Fourth Proportional to 74,498.77, 102,807.16 and 40,506.99
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Solution
The fourth proportional to 74,498.77, 102,807.16 and 40,506.99 is: 55,899.02
Step by Step Solution
- Step 1: Write the proportion equation
74,498.77 : 102,807.16 = 40,506.99 : x - Step 2: Convert to fraction form
74,498.77/102,807.16 = 40,506.99/x - Step 3: Cross multiply
74,498.77x = 102,807.16 × 40,506.99 - Step 4: Simplify right side
74,498.77x = 4,164,408,602.05 - Step 5: Solve for x
x = 4,164,408,602.05/74,498.77 - Step 6: Final answer
x = 55,899.02
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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.