Home / 85,825.06-128,773.13-46,335.74

Finding the Fourth Proportional to 85,825.06, 128,773.13 and 46,335.74

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Solution

The fourth proportional to 85,825.06, 128,773.13 and 46,335.74 is: 69,522.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,825.06 : 128,773.13 = 46,335.74 : x
  2. Step 2: Convert to fraction form
    85,825.06/128,773.13 = 46,335.74/x
  3. Step 3: Cross multiply
    85,825.06x = 128,773.13 × 46,335.74
  4. Step 4: Simplify right side
    85,825.06x = 5,966,797,395.12
  5. Step 5: Solve for x
    x = 5,966,797,395.12/85,825.06
  6. Step 6: Final answer
    x = 69,522.79

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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.