Finding the Fourth Proportional to 93,881.60, 129,553.80 and 51,438.68
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Solution
The fourth proportional to 93,881.60, 129,553.80 and 51,438.68 is: 70,983.84
Step by Step Solution
- Step 1: Write the proportion equation
93,881.60 : 129,553.80 = 51,438.68 : x - Step 2: Convert to fraction form
93,881.60/129,553.80 = 51,438.68/x - Step 3: Cross multiply
93,881.60x = 129,553.80 × 51,438.68 - Step 4: Simplify right side
93,881.60x = 6,664,076,460.98 - Step 5: Solve for x
x = 6,664,076,460.98/93,881.60 - Step 6: Final answer
x = 70,983.84
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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.