Finding the Fourth Proportional to 93,040.08, 128,412.36 and 55,335.12
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Solution
The fourth proportional to 93,040.08, 128,412.36 and 55,335.12 is: 76,372.61
Step by Step Solution
- Step 1: Write the proportion equation
93,040.08 : 128,412.36 = 55,335.12 : x - Step 2: Convert to fraction form
93,040.08/128,412.36 = 55,335.12/x - Step 3: Cross multiply
93,040.08x = 128,412.36 × 55,335.12 - Step 4: Simplify right side
93,040.08x = 7,105,713,350.08 - Step 5: Solve for x
x = 7,105,713,350.08/93,040.08 - Step 6: Final answer
x = 76,372.61
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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.