Finding the Fourth Proportional to 97,946.18, 135,193.76 and 57,683.30
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Solution
The fourth proportional to 97,946.18, 135,193.76 and 57,683.30 is: 79,619.46
Step by Step Solution
- Step 1: Write the proportion equation
97,946.18 : 135,193.76 = 57,683.30 : x - Step 2: Convert to fraction form
97,946.18/135,193.76 = 57,683.30/x - Step 3: Cross multiply
97,946.18x = 135,193.76 × 57,683.30 - Step 4: Simplify right side
97,946.18x = 7,798,422,216.21 - Step 5: Solve for x
x = 7,798,422,216.21/97,946.18 - Step 6: Final answer
x = 79,619.46
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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.