Finding the Fourth Proportional to 93,059.91, 128,494.76 and 71,515.53
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Solution
The fourth proportional to 93,059.91, 128,494.76 and 71,515.53 is: 98,746.82
Step by Step Solution
- Step 1: Write the proportion equation
93,059.91 : 128,494.76 = 71,515.53 : x - Step 2: Convert to fraction form
93,059.91/128,494.76 = 71,515.53/x - Step 3: Cross multiply
93,059.91x = 128,494.76 × 71,515.53 - Step 4: Simplify right side
93,059.91x = 9,189,370,506.05 - Step 5: Solve for x
x = 9,189,370,506.05/93,059.91 - Step 6: Final answer
x = 98,746.82
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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.