Finding the Fourth Proportional to 93,410.24, 128,908.95 and 53,129.79
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Solution
The fourth proportional to 93,410.24, 128,908.95 and 53,129.79 is: 73,320.72
Step by Step Solution
- Step 1: Write the proportion equation
93,410.24 : 128,908.95 = 53,129.79 : x - Step 2: Convert to fraction form
93,410.24/128,908.95 = 53,129.79/x - Step 3: Cross multiply
93,410.24x = 128,908.95 × 53,129.79 - Step 4: Simplify right side
93,410.24x = 6,848,905,442.62 - Step 5: Solve for x
x = 6,848,905,442.62/93,410.24 - Step 6: Final answer
x = 73,320.72
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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.