Finding the Fourth Proportional to 77,904.08, 107,507.60 and 42,094.08
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Solution
The fourth proportional to 77,904.08, 107,507.60 and 42,094.08 is: 58,089.81
Step by Step Solution
- Step 1: Write the proportion equation
77,904.08 : 107,507.60 = 42,094.08 : x - Step 2: Convert to fraction form
77,904.08/107,507.60 = 42,094.08/x - Step 3: Cross multiply
77,904.08x = 107,507.60 × 42,094.08 - Step 4: Simplify right side
77,904.08x = 4,525,433,515.01 - Step 5: Solve for x
x = 4,525,433,515.01/77,904.08 - Step 6: Final answer
x = 58,089.81
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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.