Finding the Fourth Proportional to 74,977.08, 103,455.36 and 46,312.80
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Solution
The fourth proportional to 74,977.08, 103,455.36 and 46,312.80 is: 63,903.63
Step by Step Solution
- Step 1: Write the proportion equation
74,977.08 : 103,455.36 = 46,312.80 : x - Step 2: Convert to fraction form
74,977.08/103,455.36 = 46,312.80/x - Step 3: Cross multiply
74,977.08x = 103,455.36 × 46,312.80 - Step 4: Simplify right side
74,977.08x = 4,791,307,396.61 - Step 5: Solve for x
x = 4,791,307,396.61/74,977.08 - Step 6: Final answer
x = 63,903.63
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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.