Home / 85,528.14-128,307.63-29,353.77

Finding the Fourth Proportional to 85,528.14, 128,307.63 and 29,353.77

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Solution

The fourth proportional to 85,528.14, 128,307.63 and 29,353.77 is: 44,035.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,528.14 : 128,307.63 = 29,353.77 : x
  2. Step 2: Convert to fraction form
    85,528.14/128,307.63 = 29,353.77/x
  3. Step 3: Cross multiply
    85,528.14x = 128,307.63 × 29,353.77
  4. Step 4: Simplify right side
    85,528.14x = 3,766,312,660.27
  5. Step 5: Solve for x
    x = 3,766,312,660.27/85,528.14
  6. Step 6: Final answer
    x = 44,035.95

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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.