Finding the Fourth Proportional to 101,349.34, 139,847.80 and 58,312.48
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Solution
The fourth proportional to 101,349.34, 139,847.80 and 58,312.48 is: 80,463.00
Step by Step Solution
- Step 1: Write the proportion equation
101,349.34 : 139,847.80 = 58,312.48 : x - Step 2: Convert to fraction form
101,349.34/139,847.80 = 58,312.48/x - Step 3: Cross multiply
101,349.34x = 139,847.80 × 58,312.48 - Step 4: Simplify right side
101,349.34x = 8,154,872,040.54 - Step 5: Solve for x
x = 8,154,872,040.54/101,349.34 - Step 6: Final answer
x = 80,463.00
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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.