Finding the Fourth Proportional to 92,925.31, 128,228.96 and 51,533.63
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Solution
The fourth proportional to 92,925.31, 128,228.96 and 51,533.63 is: 71,111.99
Step by Step Solution
- Step 1: Write the proportion equation
92,925.31 : 128,228.96 = 51,533.63 : x - Step 2: Convert to fraction form
92,925.31/128,228.96 = 51,533.63/x - Step 3: Cross multiply
92,925.31x = 128,228.96 × 51,533.63 - Step 4: Simplify right side
92,925.31x = 6,608,103,748.47 - Step 5: Solve for x
x = 6,608,103,748.47/92,925.31 - Step 6: Final answer
x = 71,111.99
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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.