Finding the Fourth Proportional to 79,164.74, 109,248.55 and 43,358.09
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Solution
The fourth proportional to 79,164.74, 109,248.55 and 43,358.09 is: 59,834.82
Step by Step Solution
- Step 1: Write the proportion equation
79,164.74 : 109,248.55 = 43,358.09 : x - Step 2: Convert to fraction form
79,164.74/109,248.55 = 43,358.09/x - Step 3: Cross multiply
79,164.74x = 109,248.55 × 43,358.09 - Step 4: Simplify right side
79,164.74x = 4,736,807,808.63 - Step 5: Solve for x
x = 4,736,807,808.63/79,164.74 - Step 6: Final answer
x = 59,834.82
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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.