Finding the Fourth Proportional to 93,790.42, 129,430.77 and 51,349.06
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Solution
The fourth proportional to 93,790.42, 129,430.77 and 51,349.06 is: 70,861.70
Step by Step Solution
- Step 1: Write the proportion equation
93,790.42 : 129,430.77 = 51,349.06 : x - Step 2: Convert to fraction form
93,790.42/129,430.77 = 51,349.06/x - Step 3: Cross multiply
93,790.42x = 129,430.77 × 51,349.06 - Step 4: Simplify right side
93,790.42x = 6,646,148,374.58 - Step 5: Solve for x
x = 6,646,148,374.58/93,790.42 - Step 6: Final answer
x = 70,861.70
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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.