Finding the Fourth Proportional to 92,917.63, 128,246.74 and 61,089.49
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Solution
The fourth proportional to 92,917.63, 128,246.74 and 61,089.49 is: 84,316.92
Step by Step Solution
- Step 1: Write the proportion equation
92,917.63 : 128,246.74 = 61,089.49 : x - Step 2: Convert to fraction form
92,917.63/128,246.74 = 61,089.49/x - Step 3: Cross multiply
92,917.63x = 128,246.74 × 61,089.49 - Step 4: Simplify right side
92,917.63x = 7,834,528,291.98 - Step 5: Solve for x
x = 7,834,528,291.98/92,917.63 - Step 6: Final answer
x = 84,316.92
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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.