Finding the Fourth Proportional to 93,068.85, 128,479.63 and 57,289.53
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Solution
The fourth proportional to 93,068.85, 128,479.63 and 57,289.53 is: 79,087.02
Step by Step Solution
- Step 1: Write the proportion equation
93,068.85 : 128,479.63 = 57,289.53 : x - Step 2: Convert to fraction form
93,068.85/128,479.63 = 57,289.53/x - Step 3: Cross multiply
93,068.85x = 128,479.63 × 57,289.53 - Step 4: Simplify right side
93,068.85x = 7,360,537,617.27 - Step 5: Solve for x
x = 7,360,537,617.27/93,068.85 - Step 6: Final answer
x = 79,087.02
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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.