Finding the Fourth Proportional to 74,430.32, 102,688.44 and 46,125.68
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Solution
The fourth proportional to 74,430.32, 102,688.44 and 46,125.68 is: 63,637.70
Step by Step Solution
- Step 1: Write the proportion equation
74,430.32 : 102,688.44 = 46,125.68 : x - Step 2: Convert to fraction form
74,430.32/102,688.44 = 46,125.68/x - Step 3: Cross multiply
74,430.32x = 102,688.44 × 46,125.68 - Step 4: Simplify right side
74,430.32x = 4,736,574,123.14 - Step 5: Solve for x
x = 4,736,574,123.14/74,430.32 - Step 6: Final answer
x = 63,637.70
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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.