Finding the Fourth Proportional to 85,110.40, 117,457.92 and 56,798.08
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Solution
The fourth proportional to 85,110.40, 117,457.92 and 56,798.08 is: 78,385.07
Step by Step Solution
- Step 1: Write the proportion equation
85,110.40 : 117,457.92 = 56,798.08 : x - Step 2: Convert to fraction form
85,110.40/117,457.92 = 56,798.08/x - Step 3: Cross multiply
85,110.40x = 117,457.92 × 56,798.08 - Step 4: Simplify right side
85,110.40x = 6,671,384,336.79 - Step 5: Solve for x
x = 6,671,384,336.79/85,110.40 - Step 6: Final answer
x = 78,385.07
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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.