Finding the Fourth Proportional to 74,454.19, 111,681.28 and 19,050.19
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Solution
The fourth proportional to 74,454.19, 111,681.28 and 19,050.19 is: 28,575.28
Step by Step Solution
- Step 1: Write the proportion equation
74,454.19 : 111,681.28 = 19,050.19 : x - Step 2: Convert to fraction form
74,454.19/111,681.28 = 19,050.19/x - Step 3: Cross multiply
74,454.19x = 111,681.28 × 19,050.19 - Step 4: Simplify right side
74,454.19x = 2,127,549,348.05 - Step 5: Solve for x
x = 2,127,549,348.05/74,454.19 - Step 6: Final answer
x = 28,575.28
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.