Home / 85,558.02-128,355.34-25,591.20

Finding the Fourth Proportional to 85,558.02, 128,355.34 and 25,591.20

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Solution

The fourth proportional to 85,558.02, 128,355.34 and 25,591.20 is: 38,392.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,558.02 : 128,355.34 = 25,591.20 : x
  2. Step 2: Convert to fraction form
    85,558.02/128,355.34 = 25,591.20/x
  3. Step 3: Cross multiply
    85,558.02x = 128,355.34 × 25,591.20
  4. Step 4: Simplify right side
    85,558.02x = 3,284,767,177.01
  5. Step 5: Solve for x
    x = 3,284,767,177.01/85,558.02
  6. Step 6: Final answer
    x = 38,392.28

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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.