Finding the Fourth Proportional to 92,970.99, 139,459.80 and 29,782.91
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Solution
The fourth proportional to 92,970.99, 139,459.80 and 29,782.91 is: 44,675.42
Step by Step Solution
- Step 1: Write the proportion equation
92,970.99 : 139,459.80 = 29,782.91 : x - Step 2: Convert to fraction form
92,970.99/139,459.80 = 29,782.91/x - Step 3: Cross multiply
92,970.99x = 139,459.80 × 29,782.91 - Step 4: Simplify right side
92,970.99x = 4,153,517,974.72 - Step 5: Solve for x
x = 4,153,517,974.72/92,970.99 - Step 6: Final answer
x = 44,675.42
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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.