Finding the Fourth Proportional to 88,457.32, 122,037.60 and 56,621.08
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Solution
The fourth proportional to 88,457.32, 122,037.60 and 56,621.08 is: 78,115.65
Step by Step Solution
- Step 1: Write the proportion equation
88,457.32 : 122,037.60 = 56,621.08 : x - Step 2: Convert to fraction form
88,457.32/122,037.60 = 56,621.08/x - Step 3: Cross multiply
88,457.32x = 122,037.60 × 56,621.08 - Step 4: Simplify right side
88,457.32x = 6,909,900,712.61 - Step 5: Solve for x
x = 6,909,900,712.61/88,457.32 - Step 6: Final answer
x = 78,115.65
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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.