Home / 50,715.32-76,079.90-21,126.23

Finding the Fourth Proportional to 50,715.32, 76,079.90 and 21,126.23

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Solution

The fourth proportional to 50,715.32, 76,079.90 and 21,126.23 is: 31,692.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,715.32 : 76,079.90 = 21,126.23 : x
  2. Step 2: Convert to fraction form
    50,715.32/76,079.90 = 21,126.23/x
  3. Step 3: Cross multiply
    50,715.32x = 76,079.90 × 21,126.23
  4. Step 4: Simplify right side
    50,715.32x = 1,607,281,792.02
  5. Step 5: Solve for x
    x = 1,607,281,792.02/50,715.32
  6. Step 6: Final answer
    x = 31,692.23

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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.