Finding the Fourth Proportional to 93,681.21, 129,283.16 and 51,239.73
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Solution
The fourth proportional to 93,681.21, 129,283.16 and 51,239.73 is: 70,712.51
Step by Step Solution
- Step 1: Write the proportion equation
93,681.21 : 129,283.16 = 51,239.73 : x - Step 2: Convert to fraction form
93,681.21/129,283.16 = 51,239.73/x - Step 3: Cross multiply
93,681.21x = 129,283.16 × 51,239.73 - Step 4: Simplify right side
93,681.21x = 6,624,433,955.75 - Step 5: Solve for x
x = 6,624,433,955.75/93,681.21 - Step 6: Final answer
x = 70,712.51
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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.