Home / 51,438-70,984.44-29,086.32

Finding the Fourth Proportional to 51,438, 70,984.44 and 29,086.32

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Solution

The fourth proportional to 51,438, 70,984.44 and 29,086.32 is: 40,139.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,438 : 70,984.44 = 29,086.32 : x
  2. Step 2: Convert to fraction form
    51,438/70,984.44 = 29,086.32/x
  3. Step 3: Cross multiply
    51,438x = 70,984.44 × 29,086.32
  4. Step 4: Simplify right side
    51,438x = 2,064,676,136.86
  5. Step 5: Solve for x
    x = 2,064,676,136.86/51,438
  6. Step 6: Final answer
    x = 40,139.12

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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.