Home / 64,383.36-88,812.38-51,650.78

Finding the Fourth Proportional to 64,383.36, 88,812.38 and 51,650.78

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Solution

The fourth proportional to 64,383.36, 88,812.38 and 51,650.78 is: 71,248.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,383.36 : 88,812.38 = 51,650.78 : x
  2. Step 2: Convert to fraction form
    64,383.36/88,812.38 = 51,650.78/x
  3. Step 3: Cross multiply
    64,383.36x = 88,812.38 × 51,650.78
  4. Step 4: Simplify right side
    64,383.36x = 4,587,228,700.66
  5. Step 5: Solve for x
    x = 4,587,228,700.66/64,383.36
  6. Step 6: Final answer
    x = 71,248.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.