Finding the Fourth Proportional to 86,130.24, 129,195.34 and 26,970.54
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Solution
The fourth proportional to 86,130.24, 129,195.34 and 26,970.54 is: 40,455.80
Step by Step Solution
- Step 1: Write the proportion equation
86,130.24 : 129,195.34 = 26,970.54 : x - Step 2: Convert to fraction form
86,130.24/129,195.34 = 26,970.54/x - Step 3: Cross multiply
86,130.24x = 129,195.34 × 26,970.54 - Step 4: Simplify right side
86,130.24x = 3,484,468,085.28 - Step 5: Solve for x
x = 3,484,468,085.28/86,130.24 - Step 6: Final answer
x = 40,455.80
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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.