Finding the Fourth Proportional to 93,285.68, 139,942.35 and 30,085.02
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Solution
The fourth proportional to 93,285.68, 139,942.35 and 30,085.02 is: 45,131.99
Step by Step Solution
- Step 1: Write the proportion equation
93,285.68 : 139,942.35 = 30,085.02 : x - Step 2: Convert to fraction form
93,285.68/139,942.35 = 30,085.02/x - Step 3: Cross multiply
93,285.68x = 139,942.35 × 30,085.02 - Step 4: Simplify right side
93,285.68x = 4,210,168,398.60 - Step 5: Solve for x
x = 4,210,168,398.60/93,285.68 - Step 6: Final answer
x = 45,131.99
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1.5x scale
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.