Finding the Fourth Proportional to 93,809.60, 129,457.28 and 50,789.09
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Solution
The fourth proportional to 93,809.60, 129,457.28 and 50,789.09 is: 70,088.96
Step by Step Solution
- Step 1: Write the proportion equation
93,809.60 : 129,457.28 = 50,789.09 : x - Step 2: Convert to fraction form
93,809.60/129,457.28 = 50,789.09/x - Step 3: Cross multiply
93,809.60x = 129,457.28 × 50,789.09 - Step 4: Simplify right side
93,809.60x = 6,575,016,924.76 - Step 5: Solve for x
x = 6,575,016,924.76/93,809.60 - Step 6: Final answer
x = 70,088.96
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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.