Finding the Fourth Proportional to 83,781.47, 125,681.45 and 24,621.75
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Solution
The fourth proportional to 83,781.47, 125,681.45 and 24,621.75 is: 36,935.34
Step by Step Solution
- Step 1: Write the proportion equation
83,781.47 : 125,681.45 = 24,621.75 : x - Step 2: Convert to fraction form
83,781.47/125,681.45 = 24,621.75/x - Step 3: Cross multiply
83,781.47x = 125,681.45 × 24,621.75 - Step 4: Simplify right side
83,781.47x = 3,094,497,118.43 - Step 5: Solve for x
x = 3,094,497,118.43/83,781.47 - Step 6: Final answer
x = 36,935.34
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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.