Finding the Fourth Proportional to 90,929.18, 125,482.18 and 52,710.90
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Solution
The fourth proportional to 90,929.18, 125,482.18 and 52,710.90 is: 72,740.99
Step by Step Solution
- Step 1: Write the proportion equation
90,929.18 : 125,482.18 = 52,710.90 : x - Step 2: Convert to fraction form
90,929.18/125,482.18 = 52,710.90/x - Step 3: Cross multiply
90,929.18x = 125,482.18 × 52,710.90 - Step 4: Simplify right side
90,929.18x = 6,614,278,014.35 - Step 5: Solve for x
x = 6,614,278,014.35/90,929.18 - Step 6: Final answer
x = 72,740.99
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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.