Finding the Fourth Proportional to 101,070.36, 139,477.95 and 55,750.14
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Solution
The fourth proportional to 101,070.36, 139,477.95 and 55,750.14 is: 76,935.66
Step by Step Solution
- Step 1: Write the proportion equation
101,070.36 : 139,477.95 = 55,750.14 : x - Step 2: Convert to fraction form
101,070.36/139,477.95 = 55,750.14/x - Step 3: Cross multiply
101,070.36x = 139,477.95 × 55,750.14 - Step 4: Simplify right side
101,070.36x = 7,775,915,239.41 - Step 5: Solve for x
x = 7,775,915,239.41/101,070.36 - Step 6: Final answer
x = 76,935.66
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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.