Finding the Fourth Proportional to 97,764.96, 135,026.16 and 65,878.52
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Solution
The fourth proportional to 97,764.96, 135,026.16 and 65,878.52 is: 90,986.83
Step by Step Solution
- Step 1: Write the proportion equation
97,764.96 : 135,026.16 = 65,878.52 : x - Step 2: Convert to fraction form
97,764.96/135,026.16 = 65,878.52/x - Step 3: Cross multiply
97,764.96x = 135,026.16 × 65,878.52 - Step 4: Simplify right side
97,764.96x = 8,895,323,582.08 - Step 5: Solve for x
x = 8,895,323,582.08/97,764.96 - Step 6: Final answer
x = 90,986.83
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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.