Home / 86,426.43-129,638.68-22,384.28

Finding the Fourth Proportional to 86,426.43, 129,638.68 and 22,384.28

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Solution

The fourth proportional to 86,426.43, 129,638.68 and 22,384.28 is: 33,576.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,426.43 : 129,638.68 = 22,384.28 : x
  2. Step 2: Convert to fraction form
    86,426.43/129,638.68 = 22,384.28/x
  3. Step 3: Cross multiply
    86,426.43x = 129,638.68 × 22,384.28
  4. Step 4: Simplify right side
    86,426.43x = 2,901,868,780.09
  5. Step 5: Solve for x
    x = 2,901,868,780.09/86,426.43
  6. Step 6: Final answer
    x = 33,576.17

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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.