Finding the Fourth Proportional to 83,403.65, 124,985.68 and 47,408.70
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Solution
The fourth proportional to 83,403.65, 124,985.68 and 47,408.70 is: 71,044.96
Step by Step Solution
- Step 1: Write the proportion equation
83,403.65 : 124,985.68 = 47,408.70 : x - Step 2: Convert to fraction form
83,403.65/124,985.68 = 47,408.70/x - Step 3: Cross multiply
83,403.65x = 124,985.68 × 47,408.70 - Step 4: Simplify right side
83,403.65x = 5,925,408,957.59 - Step 5: Solve for x
x = 5,925,408,957.59/83,403.65 - Step 6: Final answer
x = 71,044.96
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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.