Home / 86,386.64-129,600.40-27,222.10

Finding the Fourth Proportional to 86,386.64, 129,600.40 and 27,222.10

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Solution

The fourth proportional to 86,386.64, 129,600.40 and 27,222.10 is: 40,839.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,386.64 : 129,600.40 = 27,222.10 : x
  2. Step 2: Convert to fraction form
    86,386.64/129,600.40 = 27,222.10/x
  3. Step 3: Cross multiply
    86,386.64x = 129,600.40 × 27,222.10
  4. Step 4: Simplify right side
    86,386.64x = 3,527,995,048.84
  5. Step 5: Solve for x
    x = 3,527,995,048.84/86,386.64
  6. Step 6: Final answer
    x = 40,839.59

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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.