Home / 64,138.20-96,207.30-55,390.20

Finding the Fourth Proportional to 64,138.20, 96,207.30 and 55,390.20

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Solution

The fourth proportional to 64,138.20, 96,207.30 and 55,390.20 is: 83,085.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,138.20 : 96,207.30 = 55,390.20 : x
  2. Step 2: Convert to fraction form
    64,138.20/96,207.30 = 55,390.20/x
  3. Step 3: Cross multiply
    64,138.20x = 96,207.30 × 55,390.20
  4. Step 4: Simplify right side
    64,138.20x = 5,328,941,588.46
  5. Step 5: Solve for x
    x = 5,328,941,588.46/64,138.20
  6. Step 6: Final answer
    x = 83,085.30

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1.5x scale

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.