Home / 70,664.52-106,011.36-20,746.20

Finding the Fourth Proportional to 70,664.52, 106,011.36 and 20,746.20

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Solution

The fourth proportional to 70,664.52, 106,011.36 and 20,746.20 is: 31,123.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,664.52 : 106,011.36 = 20,746.20 : x
  2. Step 2: Convert to fraction form
    70,664.52/106,011.36 = 20,746.20/x
  3. Step 3: Cross multiply
    70,664.52x = 106,011.36 × 20,746.20
  4. Step 4: Simplify right side
    70,664.52x = 2,199,332,876.83
  5. Step 5: Solve for x
    x = 2,199,332,876.83/70,664.52
  6. Step 6: Final answer
    x = 31,123.58

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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.