Finding the Fourth Proportional to 93,280.99, 128,730.78 and 52,994.02
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Solution
The fourth proportional to 93,280.99, 128,730.78 and 52,994.02 is: 73,133.45
Step by Step Solution
- Step 1: Write the proportion equation
93,280.99 : 128,730.78 = 52,994.02 : x - Step 2: Convert to fraction form
93,280.99/128,730.78 = 52,994.02/x - Step 3: Cross multiply
93,280.99x = 128,730.78 × 52,994.02 - Step 4: Simplify right side
93,280.99x = 6,821,960,621.31 - Step 5: Solve for x
x = 6,821,960,621.31/93,280.99 - Step 6: Final answer
x = 73,133.45
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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.