Home / 85,620.02-128,417.07-23,295.38

Finding the Fourth Proportional to 85,620.02, 128,417.07 and 23,295.38

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Solution

The fourth proportional to 85,620.02, 128,417.07 and 23,295.38 is: 34,939.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,620.02 : 128,417.07 = 23,295.38 : x
  2. Step 2: Convert to fraction form
    85,620.02/128,417.07 = 23,295.38/x
  3. Step 3: Cross multiply
    85,620.02x = 128,417.07 × 23,295.38
  4. Step 4: Simplify right side
    85,620.02x = 2,991,524,444.14
  5. Step 5: Solve for x
    x = 2,991,524,444.14/85,620.02
  6. Step 6: Final answer
    x = 34,939.54

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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.