Finding the Fourth Proportional to 76,430.10, 114,661.35 and 23,117.70
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Solution
The fourth proportional to 76,430.10, 114,661.35 and 23,117.70 is: 34,681.45
Step by Step Solution
- Step 1: Write the proportion equation
76,430.10 : 114,661.35 = 23,117.70 : x - Step 2: Convert to fraction form
76,430.10/114,661.35 = 23,117.70/x - Step 3: Cross multiply
76,430.10x = 114,661.35 × 23,117.70 - Step 4: Simplify right side
76,430.10x = 2,650,706,690.90 - Step 5: Solve for x
x = 2,650,706,690.90/76,430.10 - Step 6: Final answer
x = 34,681.45
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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.