Finding the Fourth Proportional to 101,349.97, 139,862.01 and 56,029.12
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Solution
The fourth proportional to 101,349.97, 139,862.01 and 56,029.12 is: 77,319.66
Step by Step Solution
- Step 1: Write the proportion equation
101,349.97 : 139,862.01 = 56,029.12 : x - Step 2: Convert to fraction form
101,349.97/139,862.01 = 56,029.12/x - Step 3: Cross multiply
101,349.97x = 139,862.01 × 56,029.12 - Step 4: Simplify right side
101,349.97x = 7,836,345,341.73 - Step 5: Solve for x
x = 7,836,345,341.73/101,349.97 - Step 6: Final answer
x = 77,319.66
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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.