Home / 85,559.02-128,356.84-25,592.20

Finding the Fourth Proportional to 85,559.02, 128,356.84 and 25,592.20

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Solution

The fourth proportional to 85,559.02, 128,356.84 and 25,592.20 is: 38,393.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,559.02 : 128,356.84 = 25,592.20 : x
  2. Step 2: Convert to fraction form
    85,559.02/128,356.84 = 25,592.20/x
  3. Step 3: Cross multiply
    85,559.02x = 128,356.84 × 25,592.20
  4. Step 4: Simplify right side
    85,559.02x = 3,284,933,920.65
  5. Step 5: Solve for x
    x = 3,284,933,920.65/85,559.02
  6. Step 6: Final answer
    x = 38,393.78

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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.