Home / 85,500.99-128,265.27-26,336.64

Finding the Fourth Proportional to 85,500.99, 128,265.27 and 26,336.64

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Solution

The fourth proportional to 85,500.99, 128,265.27 and 26,336.64 is: 39,509.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,500.99 : 128,265.27 = 26,336.64 : x
  2. Step 2: Convert to fraction form
    85,500.99/128,265.27 = 26,336.64/x
  3. Step 3: Cross multiply
    85,500.99x = 128,265.27 × 26,336.64
  4. Step 4: Simplify right side
    85,500.99x = 3,378,076,240.49
  5. Step 5: Solve for x
    x = 3,378,076,240.49/85,500.99
  6. Step 6: Final answer
    x = 39,509.21

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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.