Finding the Fourth Proportional to 98,975.97, 136,594.08 and 56,533.59
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Solution
The fourth proportional to 98,975.97, 136,594.08 and 56,533.59 is: 78,020.49
Step by Step Solution
- Step 1: Write the proportion equation
98,975.97 : 136,594.08 = 56,533.59 : x - Step 2: Convert to fraction form
98,975.97/136,594.08 = 56,533.59/x - Step 3: Cross multiply
98,975.97x = 136,594.08 × 56,533.59 - Step 4: Simplify right side
98,975.97x = 7,722,153,715.15 - Step 5: Solve for x
x = 7,722,153,715.15/98,975.97 - Step 6: Final answer
x = 78,020.49
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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.