Finding the Fourth Proportional to 93,811.92, 129,460.16 and 51,370.40
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Solution
The fourth proportional to 93,811.92, 129,460.16 and 51,370.40 is: 70,890.99
Step by Step Solution
- Step 1: Write the proportion equation
93,811.92 : 129,460.16 = 51,370.40 : x - Step 2: Convert to fraction form
93,811.92/129,460.16 = 51,370.40/x - Step 3: Cross multiply
93,811.92x = 129,460.16 × 51,370.40 - Step 4: Simplify right side
93,811.92x = 6,650,420,203.26 - Step 5: Solve for x
x = 6,650,420,203.26/93,811.92 - Step 6: Final answer
x = 70,890.99
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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.