Home / 64,630.38-96,972.30-28,587.90

Finding the Fourth Proportional to 64,630.38, 96,972.30 and 28,587.90

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Solution

The fourth proportional to 64,630.38, 96,972.30 and 28,587.90 is: 42,893.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,630.38 : 96,972.30 = 28,587.90 : x
  2. Step 2: Convert to fraction form
    64,630.38/96,972.30 = 28,587.90/x
  3. Step 3: Cross multiply
    64,630.38x = 96,972.30 × 28,587.90
  4. Step 4: Simplify right side
    64,630.38x = 2,772,234,415.17
  5. Step 5: Solve for x
    x = 2,772,234,415.17/64,630.38
  6. Step 6: Final answer
    x = 42,893.67

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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.