Finding the Fourth Proportional to 85,506.84, 128,248.21 and 29,345.96
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Solution
The fourth proportional to 85,506.84, 128,248.21 and 29,345.96 is: 44,014.80
Step by Step Solution
- Step 1: Write the proportion equation
85,506.84 : 128,248.21 = 29,345.96 : x - Step 2: Convert to fraction form
85,506.84/128,248.21 = 29,345.96/x - Step 3: Cross multiply
85,506.84x = 128,248.21 × 29,345.96 - Step 4: Simplify right side
85,506.84x = 3,763,566,840.73 - Step 5: Solve for x
x = 3,763,566,840.73/85,506.84 - Step 6: Final answer
x = 44,014.80
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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.