Finding the Fourth Proportional to 74,807.99, 103,225.76 and 45,750.96
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Solution
The fourth proportional to 74,807.99, 103,225.76 and 45,750.96 is: 63,130.66
Step by Step Solution
- Step 1: Write the proportion equation
74,807.99 : 103,225.76 = 45,750.96 : x - Step 2: Convert to fraction form
74,807.99/103,225.76 = 45,750.96/x - Step 3: Cross multiply
74,807.99x = 103,225.76 × 45,750.96 - Step 4: Simplify right side
74,807.99x = 4,722,677,559.54 - Step 5: Solve for x
x = 4,722,677,559.54/74,807.99 - Step 6: Final answer
x = 63,130.66
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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.