Finding the Fourth Proportional to 86,228.80, 129,490.80 and 46,862.80
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Solution
The fourth proportional to 86,228.80, 129,490.80 and 46,862.80 is: 70,374.42
Step by Step Solution
- Step 1: Write the proportion equation
86,228.80 : 129,490.80 = 46,862.80 : x - Step 2: Convert to fraction form
86,228.80/129,490.80 = 46,862.80/x - Step 3: Cross multiply
86,228.80x = 129,490.80 × 46,862.80 - Step 4: Simplify right side
86,228.80x = 6,068,301,462.24 - Step 5: Solve for x
x = 6,068,301,462.24/86,228.80 - Step 6: Final answer
x = 70,374.42
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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.