Finding the Fourth Proportional to 93,449.08, 128,961.48 and 51,009.13
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Solution
The fourth proportional to 93,449.08, 128,961.48 and 51,009.13 is: 70,393.55
Step by Step Solution
- Step 1: Write the proportion equation
93,449.08 : 128,961.48 = 51,009.13 : x - Step 2: Convert to fraction form
93,449.08/128,961.48 = 51,009.13/x - Step 3: Cross multiply
93,449.08x = 128,961.48 × 51,009.13 - Step 4: Simplify right side
93,449.08x = 6,578,212,898.31 - Step 5: Solve for x
x = 6,578,212,898.31/93,449.08 - Step 6: Final answer
x = 70,393.55
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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.