Finding the Fourth Proportional to 93,216.09, 128,639.08 and 52,930.70
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Solution
The fourth proportional to 93,216.09, 128,639.08 and 52,930.70 is: 73,044.86
Step by Step Solution
- Step 1: Write the proportion equation
93,216.09 : 128,639.08 = 52,930.70 : x - Step 2: Convert to fraction form
93,216.09/128,639.08 = 52,930.70/x - Step 3: Cross multiply
93,216.09x = 128,639.08 × 52,930.70 - Step 4: Simplify right side
93,216.09x = 6,808,956,316.03 - Step 5: Solve for x
x = 6,808,956,316.03/93,216.09 - Step 6: Final answer
x = 73,044.86
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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.