Finding the Fourth Proportional to 73,315.05, 101,175.95 and 39,781.05
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Solution
The fourth proportional to 73,315.05, 101,175.95 and 39,781.05 is: 54,898.49
Step by Step Solution
- Step 1: Write the proportion equation
73,315.05 : 101,175.95 = 39,781.05 : x - Step 2: Convert to fraction form
73,315.05/101,175.95 = 39,781.05/x - Step 3: Cross multiply
73,315.05x = 101,175.95 × 39,781.05 - Step 4: Simplify right side
73,315.05x = 4,024,885,326.84 - Step 5: Solve for x
x = 4,024,885,326.84/73,315.05 - Step 6: Final answer
x = 54,898.49
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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.