Finding the Fourth Proportional to 88,813.74, 133,315.45 and 38,237.81
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Solution
The fourth proportional to 88,813.74, 133,315.45 and 38,237.81 is: 57,397.55
Step by Step Solution
- Step 1: Write the proportion equation
88,813.74 : 133,315.45 = 38,237.81 : x - Step 2: Convert to fraction form
88,813.74/133,315.45 = 38,237.81/x - Step 3: Cross multiply
88,813.74x = 133,315.45 × 38,237.81 - Step 4: Simplify right side
88,813.74x = 5,097,691,084.86 - Step 5: Solve for x
x = 5,097,691,084.86/88,813.74 - Step 6: Final answer
x = 57,397.55
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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.