Finding the Fourth Proportional to 70,177.68, 105,081.53 and 42,030.99
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Solution
The fourth proportional to 70,177.68, 105,081.53 and 42,030.99 is: 62,935.69
Step by Step Solution
- Step 1: Write the proportion equation
70,177.68 : 105,081.53 = 42,030.99 : x - Step 2: Convert to fraction form
70,177.68/105,081.53 = 42,030.99/x - Step 3: Cross multiply
70,177.68x = 105,081.53 × 42,030.99 - Step 4: Simplify right side
70,177.68x = 4,416,680,526.46 - Step 5: Solve for x
x = 4,416,680,526.46/70,177.68 - Step 6: Final answer
x = 62,935.69
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.