Home / 85,386.03-128,078.78-23,056.53

Finding the Fourth Proportional to 85,386.03, 128,078.78 and 23,056.53

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Solution

The fourth proportional to 85,386.03, 128,078.78 and 23,056.53 is: 34,584.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,386.03 : 128,078.78 = 23,056.53 : x
  2. Step 2: Convert to fraction form
    85,386.03/128,078.78 = 23,056.53/x
  3. Step 3: Cross multiply
    85,386.03x = 128,078.78 × 23,056.53
  4. Step 4: Simplify right side
    85,386.03x = 2,953,052,118.15
  5. Step 5: Solve for x
    x = 2,953,052,118.15/85,386.03
  6. Step 6: Final answer
    x = 34,584.72

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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.