Home / 85,057.08-127,599.35-25,878.81

Finding the Fourth Proportional to 85,057.08, 127,599.35 and 25,878.81

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Solution

The fourth proportional to 85,057.08, 127,599.35 and 25,878.81 is: 38,822.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,057.08 : 127,599.35 = 25,878.81 : x
  2. Step 2: Convert to fraction form
    85,057.08/127,599.35 = 25,878.81/x
  3. Step 3: Cross multiply
    85,057.08x = 127,599.35 × 25,878.81
  4. Step 4: Simplify right side
    85,057.08x = 3,302,119,334.77
  5. Step 5: Solve for x
    x = 3,302,119,334.77/85,057.08
  6. Step 6: Final answer
    x = 38,822.39

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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.