Home / 52,113.38-78,180.91-20,948.64

Finding the Fourth Proportional to 52,113.38, 78,180.91 and 20,948.64

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Solution

The fourth proportional to 52,113.38, 78,180.91 and 20,948.64 is: 31,427.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,113.38 : 78,180.91 = 20,948.64 : x
  2. Step 2: Convert to fraction form
    52,113.38/78,180.91 = 20,948.64/x
  3. Step 3: Cross multiply
    52,113.38x = 78,180.91 × 20,948.64
  4. Step 4: Simplify right side
    52,113.38x = 1,637,783,738.46
  5. Step 5: Solve for x
    x = 1,637,783,738.46/52,113.38
  6. Step 6: Final answer
    x = 31,427.32

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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.