Finding the Fourth Proportional to 74,259.21, 102,477.95 and 40,267.68
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Solution
The fourth proportional to 74,259.21, 102,477.95 and 40,267.68 is: 55,569.52
Step by Step Solution
- Step 1: Write the proportion equation
74,259.21 : 102,477.95 = 40,267.68 : x - Step 2: Convert to fraction form
74,259.21/102,477.95 = 40,267.68/x - Step 3: Cross multiply
74,259.21x = 102,477.95 × 40,267.68 - Step 4: Simplify right side
74,259.21x = 4,126,548,785.27 - Step 5: Solve for x
x = 4,126,548,785.27/74,259.21 - Step 6: Final answer
x = 55,569.52
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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.