Home / 52,131.40-78,197.10-49,856.20

Finding the Fourth Proportional to 52,131.40, 78,197.10 and 49,856.20

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Solution

The fourth proportional to 52,131.40, 78,197.10 and 49,856.20 is: 74,784.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,131.40 : 78,197.10 = 49,856.20 : x
  2. Step 2: Convert to fraction form
    52,131.40/78,197.10 = 49,856.20/x
  3. Step 3: Cross multiply
    52,131.40x = 78,197.10 × 49,856.20
  4. Step 4: Simplify right side
    52,131.40x = 3,898,610,257.02
  5. Step 5: Solve for x
    x = 3,898,610,257.02/52,131.40
  6. Step 6: Final answer
    x = 74,784.30

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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.