Finding the Fourth Proportional to 98,307.20, 135,669.12 and 53,598.08
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Solution
The fourth proportional to 98,307.20, 135,669.12 and 53,598.08 is: 73,968.18
Step by Step Solution
- Step 1: Write the proportion equation
98,307.20 : 135,669.12 = 53,598.08 : x - Step 2: Convert to fraction form
98,307.20/135,669.12 = 53,598.08/x - Step 3: Cross multiply
98,307.20x = 135,669.12 × 53,598.08 - Step 4: Simplify right side
98,307.20x = 7,271,604,347.29 - Step 5: Solve for x
x = 7,271,604,347.29/98,307.20 - Step 6: Final answer
x = 73,968.18
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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.