Finding the Fourth Proportional to 101,007.41, 139,391.12 and 55,686.99
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Solution
The fourth proportional to 101,007.41, 139,391.12 and 55,686.99 is: 76,848.54
Step by Step Solution
- Step 1: Write the proportion equation
101,007.41 : 139,391.12 = 55,686.99 : x - Step 2: Convert to fraction form
101,007.41/139,391.12 = 55,686.99/x - Step 3: Cross multiply
101,007.41x = 139,391.12 × 55,686.99 - Step 4: Simplify right side
101,007.41x = 7,762,271,905.53 - Step 5: Solve for x
x = 7,762,271,905.53/101,007.41 - Step 6: Final answer
x = 76,848.54
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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.