Finding the Fourth Proportional to 92,985.74, 139,491.75 and 29,791.08
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Solution
The fourth proportional to 92,985.74, 139,491.75 and 29,791.08 is: 44,690.83
Step by Step Solution
- Step 1: Write the proportion equation
92,985.74 : 139,491.75 = 29,791.08 : x - Step 2: Convert to fraction form
92,985.74/139,491.75 = 29,791.08/x - Step 3: Cross multiply
92,985.74x = 139,491.75 × 29,791.08 - Step 4: Simplify right side
92,985.74x = 4,155,609,743.94 - Step 5: Solve for x
x = 4,155,609,743.94/92,985.74 - Step 6: Final answer
x = 44,690.83
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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.