Home / 85,705.02-128,610.64-41,336.22

Finding the Fourth Proportional to 85,705.02, 128,610.64 and 41,336.22

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Solution

The fourth proportional to 85,705.02, 128,610.64 and 41,336.22 is: 62,029.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,705.02 : 128,610.64 = 41,336.22 : x
  2. Step 2: Convert to fraction form
    85,705.02/128,610.64 = 41,336.22/x
  3. Step 3: Cross multiply
    85,705.02x = 128,610.64 × 41,336.22
  4. Step 4: Simplify right side
    85,705.02x = 5,316,277,709.38
  5. Step 5: Solve for x
    x = 5,316,277,709.38/85,705.02
  6. Step 6: Final answer
    x = 62,029.95

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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.