Finding the Fourth Proportional to 97,347.40, 145,934.70 and 57,862.60
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Solution
The fourth proportional to 97,347.40, 145,934.70 and 57,862.60 is: 86,742.54
Step by Step Solution
- Step 1: Write the proportion equation
97,347.40 : 145,934.70 = 57,862.60 : x - Step 2: Convert to fraction form
97,347.40/145,934.70 = 57,862.60/x - Step 3: Cross multiply
97,347.40x = 145,934.70 × 57,862.60 - Step 4: Simplify right side
97,347.40x = 8,444,161,172.22 - Step 5: Solve for x
x = 8,444,161,172.22/97,347.40 - Step 6: Final answer
x = 86,742.54
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.