Finding the Fourth Proportional to 97,885.79, 135,079.61 and 57,590.31
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Solution
The fourth proportional to 97,885.79, 135,079.61 and 57,590.31 is: 79,472.99
Step by Step Solution
- Step 1: Write the proportion equation
97,885.79 : 135,079.61 = 57,590.31 : x - Step 2: Convert to fraction form
97,885.79/135,079.61 = 57,590.31/x - Step 3: Cross multiply
97,885.79x = 135,079.61 × 57,590.31 - Step 4: Simplify right side
97,885.79x = 7,779,276,326.63 - Step 5: Solve for x
x = 7,779,276,326.63/97,885.79 - Step 6: Final answer
x = 79,472.99
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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.