Home / 85,544.31-128,316.53-23,214.81

Finding the Fourth Proportional to 85,544.31, 128,316.53 and 23,214.81

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Solution

The fourth proportional to 85,544.31, 128,316.53 and 23,214.81 is: 34,822.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,544.31 : 128,316.53 = 23,214.81 : x
  2. Step 2: Convert to fraction form
    85,544.31/128,316.53 = 23,214.81/x
  3. Step 3: Cross multiply
    85,544.31x = 128,316.53 × 23,214.81
  4. Step 4: Simplify right side
    85,544.31x = 2,978,843,863.81
  5. Step 5: Solve for x
    x = 2,978,843,863.81/85,544.31
  6. Step 6: Final answer
    x = 34,822.23

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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.