Home / 47,089.28-64,987.20-25,872.80

Finding the Fourth Proportional to 47,089.28, 64,987.20 and 25,872.80

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Solution

The fourth proportional to 47,089.28, 64,987.20 and 25,872.80 is: 35,706.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,089.28 : 64,987.20 = 25,872.80 : x
  2. Step 2: Convert to fraction form
    47,089.28/64,987.20 = 25,872.80/x
  3. Step 3: Cross multiply
    47,089.28x = 64,987.20 × 25,872.80
  4. Step 4: Simplify right side
    47,089.28x = 1,681,400,828.16
  5. Step 5: Solve for x
    x = 1,681,400,828.16/47,089.28
  6. Step 6: Final answer
    x = 35,706.66

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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.