Finding the Fourth Proportional to 76,862.84, 106,070.86 and 42,873.53
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Solution
The fourth proportional to 76,862.84, 106,070.86 and 42,873.53 is: 59,165.55
Step by Step Solution
- Step 1: Write the proportion equation
76,862.84 : 106,070.86 = 42,873.53 : x - Step 2: Convert to fraction form
76,862.84/106,070.86 = 42,873.53/x - Step 3: Cross multiply
76,862.84x = 106,070.86 × 42,873.53 - Step 4: Simplify right side
76,862.84x = 4,547,631,667.98 - Step 5: Solve for x
x = 4,547,631,667.98/76,862.84 - Step 6: Final answer
x = 59,165.55
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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.