Finding the Fourth Proportional to 93,030.41, 128,385.35 and 53,294.09
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Solution
The fourth proportional to 93,030.41, 128,385.35 and 53,294.09 is: 73,547.78
Step by Step Solution
- Step 1: Write the proportion equation
93,030.41 : 128,385.35 = 53,294.09 : x - Step 2: Convert to fraction form
93,030.41/128,385.35 = 53,294.09/x - Step 3: Cross multiply
93,030.41x = 128,385.35 × 53,294.09 - Step 4: Simplify right side
93,030.41x = 6,842,180,131.11 - Step 5: Solve for x
x = 6,842,180,131.11/93,030.41 - Step 6: Final answer
x = 73,547.78
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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.