Finding the Fourth Proportional to 75,925.84, 113,888.58 and 20,521.84
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Solution
The fourth proportional to 75,925.84, 113,888.58 and 20,521.84 is: 30,782.71
Step by Step Solution
- Step 1: Write the proportion equation
75,925.84 : 113,888.58 = 20,521.84 : x - Step 2: Convert to fraction form
75,925.84/113,888.58 = 20,521.84/x - Step 3: Cross multiply
75,925.84x = 113,888.58 × 20,521.84 - Step 4: Simplify right side
75,925.84x = 2,337,203,216.59 - Step 5: Solve for x
x = 2,337,203,216.59/75,925.84 - Step 6: Final answer
x = 30,782.71
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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.