Finding the Fourth Proportional to 93,420.25, 128,922.68 and 50,981.52
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Solution
The fourth proportional to 93,420.25, 128,922.68 and 50,981.52 is: 70,355.99
Step by Step Solution
- Step 1: Write the proportion equation
93,420.25 : 128,922.68 = 50,981.52 : x - Step 2: Convert to fraction form
93,420.25/128,922.68 = 50,981.52/x - Step 3: Cross multiply
93,420.25x = 128,922.68 × 50,981.52 - Step 4: Simplify right side
93,420.25x = 6,572,674,188.87 - Step 5: Solve for x
x = 6,572,674,188.87/93,420.25 - Step 6: Final answer
x = 70,355.99
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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.