Finding the Fourth Proportional to 93,782.52, 129,420.08 and 51,343.76
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Solution
The fourth proportional to 93,782.52, 129,420.08 and 51,343.76 is: 70,854.50
Step by Step Solution
- Step 1: Write the proportion equation
93,782.52 : 129,420.08 = 51,343.76 : x - Step 2: Convert to fraction form
93,782.52/129,420.08 = 51,343.76/x - Step 3: Cross multiply
93,782.52x = 129,420.08 × 51,343.76 - Step 4: Simplify right side
93,782.52x = 6,644,913,526.70 - Step 5: Solve for x
x = 6,644,913,526.70/93,782.52 - Step 6: Final answer
x = 70,854.50
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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.