Home / 42,873.24-64,351.20-20,702.16

Finding the Fourth Proportional to 42,873.24, 64,351.20 and 20,702.16

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Solution

The fourth proportional to 42,873.24, 64,351.20 and 20,702.16 is: 31,073.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,873.24 : 64,351.20 = 20,702.16 : x
  2. Step 2: Convert to fraction form
    42,873.24/64,351.20 = 20,702.16/x
  3. Step 3: Cross multiply
    42,873.24x = 64,351.20 × 20,702.16
  4. Step 4: Simplify right side
    42,873.24x = 1,332,208,838.59
  5. Step 5: Solve for x
    x = 1,332,208,838.59/42,873.24
  6. Step 6: Final answer
    x = 31,073.20

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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.