Finding the Fourth Proportional to 96,984.79, 145,477.35 and 30,430.02
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Solution
The fourth proportional to 96,984.79, 145,477.35 and 30,430.02 is: 45,645.09
Step by Step Solution
- Step 1: Write the proportion equation
96,984.79 : 145,477.35 = 30,430.02 : x - Step 2: Convert to fraction form
96,984.79/145,477.35 = 30,430.02/x - Step 3: Cross multiply
96,984.79x = 145,477.35 × 30,430.02 - Step 4: Simplify right side
96,984.79x = 4,426,879,215.59 - Step 5: Solve for x
x = 4,426,879,215.59/96,984.79 - Step 6: Final answer
x = 45,645.09
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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.