Finding the Fourth Proportional to 93,363.92, 128,841.60 and 53,077.70
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Solution
The fourth proportional to 93,363.92, 128,841.60 and 53,077.70 is: 73,246.88
Step by Step Solution
- Step 1: Write the proportion equation
93,363.92 : 128,841.60 = 53,077.70 : x - Step 2: Convert to fraction form
93,363.92/128,841.60 = 53,077.70/x - Step 3: Cross multiply
93,363.92x = 128,841.60 × 53,077.70 - Step 4: Simplify right side
93,363.92x = 6,838,615,148.11 - Step 5: Solve for x
x = 6,838,615,148.11/93,363.92 - Step 6: Final answer
x = 73,246.88
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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.