Finding the Fourth Proportional to 83,876.79, 115,753.16 and 48,073.71
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Solution
The fourth proportional to 83,876.79, 115,753.16 and 48,073.71 is: 66,343.55
Step by Step Solution
- Step 1: Write the proportion equation
83,876.79 : 115,753.16 = 48,073.71 : x - Step 2: Convert to fraction form
83,876.79/115,753.16 = 48,073.71/x - Step 3: Cross multiply
83,876.79x = 115,753.16 × 48,073.71 - Step 4: Simplify right side
83,876.79x = 5,564,683,605.06 - Step 5: Solve for x
x = 5,564,683,605.06/83,876.79 - Step 6: Final answer
x = 66,343.55
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1.5x scale
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.