Finding the Fourth Proportional to 101,365.65, 139,878.95 and 56,040.99
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Solution
The fourth proportional to 101,365.65, 139,878.95 and 56,040.99 is: 77,333.44
Step by Step Solution
- Step 1: Write the proportion equation
101,365.65 : 139,878.95 = 56,040.99 : x - Step 2: Convert to fraction form
101,365.65/139,878.95 = 56,040.99/x - Step 3: Cross multiply
101,365.65x = 139,878.95 × 56,040.99 - Step 4: Simplify right side
101,365.65x = 7,838,954,557.96 - Step 5: Solve for x
x = 7,838,954,557.96/101,365.65 - Step 6: Final answer
x = 77,333.44
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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.