Finding the Fourth Proportional to 101,370.29, 139,885.35 and 56,045.63
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Solution
The fourth proportional to 101,370.29, 139,885.35 and 56,045.63 is: 77,339.84
Step by Step Solution
- Step 1: Write the proportion equation
101,370.29 : 139,885.35 = 56,045.63 : x - Step 2: Convert to fraction form
101,370.29/139,885.35 = 56,045.63/x - Step 3: Cross multiply
101,370.29x = 139,885.35 × 56,045.63 - Step 4: Simplify right side
101,370.29x = 7,839,961,869.09 - Step 5: Solve for x
x = 7,839,961,869.09/101,370.29 - Step 6: Final answer
x = 77,339.84
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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.