Home / 85,422.42-128,133.63-22,242.36

Finding the Fourth Proportional to 85,422.42, 128,133.63 and 22,242.36

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Solution

The fourth proportional to 85,422.42, 128,133.63 and 22,242.36 is: 33,363.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,422.42 : 128,133.63 = 22,242.36 : x
  2. Step 2: Convert to fraction form
    85,422.42/128,133.63 = 22,242.36/x
  3. Step 3: Cross multiply
    85,422.42x = 128,133.63 × 22,242.36
  4. Step 4: Simplify right side
    85,422.42x = 2,849,994,326.57
  5. Step 5: Solve for x
    x = 2,849,994,326.57/85,422.42
  6. Step 6: Final answer
    x = 33,363.54

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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.