Finding the Fourth Proportional to 74,340.24, 102,589.58 and 42,509.76
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Solution
The fourth proportional to 74,340.24, 102,589.58 and 42,509.76 is: 58,663.50
Step by Step Solution
- Step 1: Write the proportion equation
74,340.24 : 102,589.58 = 42,509.76 : x - Step 2: Convert to fraction form
74,340.24/102,589.58 = 42,509.76/x - Step 3: Cross multiply
74,340.24x = 102,589.58 × 42,509.76 - Step 4: Simplify right side
74,340.24x = 4,361,058,424.30 - Step 5: Solve for x
x = 4,361,058,424.30/74,340.24 - Step 6: Final answer
x = 58,663.50
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1.5x scale
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.