Finding the Fourth Proportional to 98,477.74, 135,898.58 and 53,765.74
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Solution
The fourth proportional to 98,477.74, 135,898.58 and 53,765.74 is: 74,196.34
Step by Step Solution
- Step 1: Write the proportion equation
98,477.74 : 135,898.58 = 53,765.74 : x - Step 2: Convert to fraction form
98,477.74/135,898.58 = 53,765.74/x - Step 3: Cross multiply
98,477.74x = 135,898.58 × 53,765.74 - Step 4: Simplify right side
98,477.74x = 7,306,687,718.65 - Step 5: Solve for x
x = 7,306,687,718.65/98,477.74 - Step 6: Final answer
x = 74,196.34
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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.