Home / 86,186.70-129,280.32-27,017.28

Finding the Fourth Proportional to 86,186.70, 129,280.32 and 27,017.28

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Solution

The fourth proportional to 86,186.70, 129,280.32 and 27,017.28 is: 40,526.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,186.70 : 129,280.32 = 27,017.28 : x
  2. Step 2: Convert to fraction form
    86,186.70/129,280.32 = 27,017.28/x
  3. Step 3: Cross multiply
    86,186.70x = 129,280.32 × 27,017.28
  4. Step 4: Simplify right side
    86,186.70x = 3,492,802,603.93
  5. Step 5: Solve for x
    x = 3,492,802,603.93/86,186.70
  6. Step 6: Final answer
    x = 40,526.00

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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.