Finding the Fourth Proportional to 74,291.74, 102,497.66 and 42,438.08
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Solution
The fourth proportional to 74,291.74, 102,497.66 and 42,438.08 is: 58,550.30
Step by Step Solution
- Step 1: Write the proportion equation
74,291.74 : 102,497.66 = 42,438.08 : x - Step 2: Convert to fraction form
74,291.74/102,497.66 = 42,438.08/x - Step 3: Cross multiply
74,291.74x = 102,497.66 × 42,438.08 - Step 4: Simplify right side
74,291.74x = 4,349,803,894.89 - Step 5: Solve for x
x = 4,349,803,894.89/74,291.74 - Step 6: Final answer
x = 58,550.30
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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.