Finding the Fourth Proportional to 75,970.24, 113,955.44 and 19,810.30
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Solution
The fourth proportional to 75,970.24, 113,955.44 and 19,810.30 is: 29,715.46
Step by Step Solution
- Step 1: Write the proportion equation
75,970.24 : 113,955.44 = 19,810.30 : x - Step 2: Convert to fraction form
75,970.24/113,955.44 = 19,810.30/x - Step 3: Cross multiply
75,970.24x = 113,955.44 × 19,810.30 - Step 4: Simplify right side
75,970.24x = 2,257,490,784.20 - Step 5: Solve for x
x = 2,257,490,784.20/75,970.24 - Step 6: Final answer
x = 29,715.46
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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.