Finding the Fourth Proportional to 85,298.24, 117,774.12 and 55,101.20
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Solution
The fourth proportional to 85,298.24, 117,774.12 and 55,101.20 is: 76,080.06
Step by Step Solution
- Step 1: Write the proportion equation
85,298.24 : 117,774.12 = 55,101.20 : x - Step 2: Convert to fraction form
85,298.24/117,774.12 = 55,101.20/x - Step 3: Cross multiply
85,298.24x = 117,774.12 × 55,101.20 - Step 4: Simplify right side
85,298.24x = 6,489,495,340.94 - Step 5: Solve for x
x = 6,489,495,340.94/85,298.24 - Step 6: Final answer
x = 76,080.06
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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.