Home / 85,635.02-128,464.79-26,475.27

Finding the Fourth Proportional to 85,635.02, 128,464.79 and 26,475.27

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Solution

The fourth proportional to 85,635.02, 128,464.79 and 26,475.27 is: 39,716.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,635.02 : 128,464.79 = 26,475.27 : x
  2. Step 2: Convert to fraction form
    85,635.02/128,464.79 = 26,475.27/x
  3. Step 3: Cross multiply
    85,635.02x = 128,464.79 × 26,475.27
  4. Step 4: Simplify right side
    85,635.02x = 3,401,140,000.74
  5. Step 5: Solve for x
    x = 3,401,140,000.74/85,635.02
  6. Step 6: Final answer
    x = 39,716.70

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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.