Home / 42,746.17-64,120.35-20,251.58

Finding the Fourth Proportional to 42,746.17, 64,120.35 and 20,251.58

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Solution

The fourth proportional to 42,746.17, 64,120.35 and 20,251.58 is: 30,377.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,746.17 : 64,120.35 = 20,251.58 : x
  2. Step 2: Convert to fraction form
    42,746.17/64,120.35 = 20,251.58/x
  3. Step 3: Cross multiply
    42,746.17x = 64,120.35 × 20,251.58
  4. Step 4: Simplify right side
    42,746.17x = 1,298,538,393.45
  5. Step 5: Solve for x
    x = 1,298,538,393.45/42,746.17
  6. Step 6: Final answer
    x = 30,377.89

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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.