Home / 85,535.06-128,302.65-23,205.56

Finding the Fourth Proportional to 85,535.06, 128,302.65 and 23,205.56

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Solution

The fourth proportional to 85,535.06, 128,302.65 and 23,205.56 is: 34,808.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,535.06 : 128,302.65 = 23,205.56 : x
  2. Step 2: Convert to fraction form
    85,535.06/128,302.65 = 23,205.56/x
  3. Step 3: Cross multiply
    85,535.06x = 128,302.65 × 23,205.56
  4. Step 4: Simplify right side
    85,535.06x = 2,977,334,201.22
  5. Step 5: Solve for x
    x = 2,977,334,201.22/85,535.06
  6. Step 6: Final answer
    x = 34,808.35

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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.