Finding the Fourth Proportional to 70,865.99, 106,312.07 and 29,316.23
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Solution
The fourth proportional to 70,865.99, 106,312.07 and 29,316.23 is: 43,979.76
Step by Step Solution
- Step 1: Write the proportion equation
70,865.99 : 106,312.07 = 29,316.23 : x - Step 2: Convert to fraction form
70,865.99/106,312.07 = 29,316.23/x - Step 3: Cross multiply
70,865.99x = 106,312.07 × 29,316.23 - Step 4: Simplify right side
70,865.99x = 3,116,669,095.90 - Step 5: Solve for x
x = 3,116,669,095.90/70,865.99 - Step 6: Final answer
x = 43,979.76
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1.5x scale
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.