Finding the Fourth Proportional to 99,029.03, 148,587.28 and 39,980.03
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Solution
The fourth proportional to 99,029.03, 148,587.28 and 39,980.03 is: 59,987.70
Step by Step Solution
- Step 1: Write the proportion equation
99,029.03 : 148,587.28 = 39,980.03 : x - Step 2: Convert to fraction form
99,029.03/148,587.28 = 39,980.03/x - Step 3: Cross multiply
99,029.03x = 148,587.28 × 39,980.03 - Step 4: Simplify right side
99,029.03x = 5,940,523,069.13 - Step 5: Solve for x
x = 5,940,523,069.13/99,029.03 - Step 6: Final answer
x = 59,987.70
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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.