Finding the Fourth Proportional to 97,406.40, 134,374.68 and 63,402.48
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Solution
The fourth proportional to 97,406.40, 134,374.68 and 63,402.48 is: 87,465.38
Step by Step Solution
- Step 1: Write the proportion equation
97,406.40 : 134,374.68 = 63,402.48 : x - Step 2: Convert to fraction form
97,406.40/134,374.68 = 63,402.48/x - Step 3: Cross multiply
97,406.40x = 134,374.68 × 63,402.48 - Step 4: Simplify right side
97,406.40x = 8,519,687,961.21 - Step 5: Solve for x
x = 8,519,687,961.21/97,406.40 - Step 6: Final answer
x = 87,465.38
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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.