Home / 70,856.21-97,786-39,025.10

Finding the Fourth Proportional to 70,856.21, 97,786 and 39,025.10

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Solution

The fourth proportional to 70,856.21, 97,786 and 39,025.10 is: 53,857.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,856.21 : 97,786 = 39,025.10 : x
  2. Step 2: Convert to fraction form
    70,856.21/97,786 = 39,025.10/x
  3. Step 3: Cross multiply
    70,856.21x = 97,786 × 39,025.10
  4. Step 4: Simplify right side
    70,856.21x = 3,816,108,428.60
  5. Step 5: Solve for x
    x = 3,816,108,428.60/70,856.21
  6. Step 6: Final answer
    x = 53,857.08

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.