Finding the Fourth Proportional to 74,962.95, 103,448.63 and 40,971.44
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Solution
The fourth proportional to 74,962.95, 103,448.63 and 40,971.44 is: 56,540.46
Step by Step Solution
- Step 1: Write the proportion equation
74,962.95 : 103,448.63 = 40,971.44 : x - Step 2: Convert to fraction form
74,962.95/103,448.63 = 40,971.44/x - Step 3: Cross multiply
74,962.95x = 103,448.63 × 40,971.44 - Step 4: Simplify right side
74,962.95x = 4,238,439,337.13 - Step 5: Solve for x
x = 4,238,439,337.13/74,962.95 - Step 6: Final answer
x = 56,540.46
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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.