Finding the Fourth Proportional to 97,171.70, 134,130.50 and 56,898.41
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Solution
The fourth proportional to 97,171.70, 134,130.50 and 56,898.41 is: 78,539.45
Step by Step Solution
- Step 1: Write the proportion equation
97,171.70 : 134,130.50 = 56,898.41 : x - Step 2: Convert to fraction form
97,171.70/134,130.50 = 56,898.41/x - Step 3: Cross multiply
97,171.70x = 134,130.50 × 56,898.41 - Step 4: Simplify right side
97,171.70x = 7,631,811,227.36 - Step 5: Solve for x
x = 7,631,811,227.36/97,171.70 - Step 6: Final answer
x = 78,539.45
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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.