Home / 85,536.20-128,450.10-60,750.20

Finding the Fourth Proportional to 85,536.20, 128,450.10 and 60,750.20

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Solution

The fourth proportional to 85,536.20, 128,450.10 and 60,750.20 is: 91,228.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,536.20 : 128,450.10 = 60,750.20 : x
  2. Step 2: Convert to fraction form
    85,536.20/128,450.10 = 60,750.20/x
  3. Step 3: Cross multiply
    85,536.20x = 128,450.10 × 60,750.20
  4. Step 4: Simplify right side
    85,536.20x = 7,803,369,265.02
  5. Step 5: Solve for x
    x = 7,803,369,265.02/85,536.20
  6. Step 6: Final answer
    x = 91,228.85

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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.