Finding the Fourth Proportional to 74,179.95, 102,312.50 and 51,518.99
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Solution
The fourth proportional to 74,179.95, 102,312.50 and 51,518.99 is: 71,057.42
Step by Step Solution
- Step 1: Write the proportion equation
74,179.95 : 102,312.50 = 51,518.99 : x - Step 2: Convert to fraction form
74,179.95/102,312.50 = 51,518.99/x - Step 3: Cross multiply
74,179.95x = 102,312.50 × 51,518.99 - Step 4: Simplify right side
74,179.95x = 5,271,035,895.22 - Step 5: Solve for x
x = 5,271,035,895.22/74,179.95 - Step 6: Final answer
x = 71,057.42
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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.