Home / 47,139.17-70,728.33-19,079.06

Finding the Fourth Proportional to 47,139.17, 70,728.33 and 19,079.06

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Solution

The fourth proportional to 47,139.17, 70,728.33 and 19,079.06 is: 28,626.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,139.17 : 70,728.33 = 19,079.06 : x
  2. Step 2: Convert to fraction form
    47,139.17/70,728.33 = 19,079.06/x
  3. Step 3: Cross multiply
    47,139.17x = 70,728.33 × 19,079.06
  4. Step 4: Simplify right side
    47,139.17x = 1,349,429,698.13
  5. Step 5: Solve for x
    x = 1,349,429,698.13/47,139.17
  6. Step 6: Final answer
    x = 28,626.51

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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.