Finding the Fourth Proportional to 97,315.74, 134,340.93 and 57,023.91
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Solution
The fourth proportional to 97,315.74, 134,340.93 and 57,023.91 is: 78,719.49
Step by Step Solution
- Step 1: Write the proportion equation
97,315.74 : 134,340.93 = 57,023.91 : x - Step 2: Convert to fraction form
97,315.74/134,340.93 = 57,023.91/x - Step 3: Cross multiply
97,315.74x = 134,340.93 × 57,023.91 - Step 4: Simplify right side
97,315.74x = 7,660,645,101.64 - Step 5: Solve for x
x = 7,660,645,101.64/97,315.74 - Step 6: Final answer
x = 78,719.49
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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.