Finding the Fourth Proportional to 98,926.76, 136,566.26 and 56,477.08
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Solution
The fourth proportional to 98,926.76, 136,566.26 and 56,477.08 is: 77,965.39
Step by Step Solution
- Step 1: Write the proportion equation
98,926.76 : 136,566.26 = 56,477.08 : x - Step 2: Convert to fraction form
98,926.76/136,566.26 = 56,477.08/x - Step 3: Cross multiply
98,926.76x = 136,566.26 × 56,477.08 - Step 4: Simplify right side
98,926.76x = 7,712,863,591.32 - Step 5: Solve for x
x = 7,712,863,591.32/98,926.76 - Step 6: Final answer
x = 77,965.39
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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.