Finding the Fourth Proportional to 97,870.08, 135,062.49 and 55,437.42
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Solution
The fourth proportional to 97,870.08, 135,062.49 and 55,437.42 is: 76,504.65
Step by Step Solution
- Step 1: Write the proportion equation
97,870.08 : 135,062.49 = 55,437.42 : x - Step 2: Convert to fraction form
97,870.08/135,062.49 = 55,437.42/x - Step 3: Cross multiply
97,870.08x = 135,062.49 × 55,437.42 - Step 4: Simplify right side
97,870.08x = 7,487,515,984.38 - Step 5: Solve for x
x = 7,487,515,984.38/97,870.08 - Step 6: Final answer
x = 76,504.65
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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.