Finding the Fourth Proportional to 88,029.64, 121,487.40 and 50,303.08
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Solution
The fourth proportional to 88,029.64, 121,487.40 and 50,303.08 is: 69,421.96
Step by Step Solution
- Step 1: Write the proportion equation
88,029.64 : 121,487.40 = 50,303.08 : x - Step 2: Convert to fraction form
88,029.64/121,487.40 = 50,303.08/x - Step 3: Cross multiply
88,029.64x = 121,487.40 × 50,303.08 - Step 4: Simplify right side
88,029.64x = 6,111,190,401.19 - Step 5: Solve for x
x = 6,111,190,401.19/88,029.64 - Step 6: Final answer
x = 69,421.96
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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.