Finding the Fourth Proportional to 93,569.87, 129,263.02 and 80,972.75
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Solution
The fourth proportional to 93,569.87, 129,263.02 and 80,972.75 is: 111,860.60
Step by Step Solution
- Step 1: Write the proportion equation
93,569.87 : 129,263.02 = 80,972.75 : x - Step 2: Convert to fraction form
93,569.87/129,263.02 = 80,972.75/x - Step 3: Cross multiply
93,569.87x = 129,263.02 × 80,972.75 - Step 4: Simplify right side
93,569.87x = 10,466,782,202.71 - Step 5: Solve for x
x = 10,466,782,202.71/93,569.87 - Step 6: Final answer
x = 111,860.60
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1.5x scale
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.