Finding the Fourth Proportional to 72,089.67, 108,134.51 and 19,503.26
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Solution
The fourth proportional to 72,089.67, 108,134.51 and 19,503.26 is: 29,254.88
Step by Step Solution
- Step 1: Write the proportion equation
72,089.67 : 108,134.51 = 19,503.26 : x - Step 2: Convert to fraction form
72,089.67/108,134.51 = 19,503.26/x - Step 3: Cross multiply
72,089.67x = 108,134.51 × 19,503.26 - Step 4: Simplify right side
72,089.67x = 2,108,974,954.12 - Step 5: Solve for x
x = 2,108,974,954.12/72,089.67 - Step 6: Final answer
x = 29,254.88
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1.5x scale
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.