Finding the Fourth Proportional to 71,478.60, 107,210.35 and 29,363.13
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Solution
The fourth proportional to 71,478.60, 107,210.35 and 29,363.13 is: 44,041.59
Step by Step Solution
- Step 1: Write the proportion equation
71,478.60 : 107,210.35 = 29,363.13 : x - Step 2: Convert to fraction form
71,478.60/107,210.35 = 29,363.13/x - Step 3: Cross multiply
71,478.60x = 107,210.35 × 29,363.13 - Step 4: Simplify right side
71,478.60x = 3,148,031,444.40 - Step 5: Solve for x
x = 3,148,031,444.40/71,478.60 - Step 6: Final answer
x = 44,041.59
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.