Home / 47,322.20-70,983.30-42,138.20

Finding the Fourth Proportional to 47,322.20, 70,983.30 and 42,138.20

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Solution

The fourth proportional to 47,322.20, 70,983.30 and 42,138.20 is: 63,207.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,322.20 : 70,983.30 = 42,138.20 : x
  2. Step 2: Convert to fraction form
    47,322.20/70,983.30 = 42,138.20/x
  3. Step 3: Cross multiply
    47,322.20x = 70,983.30 × 42,138.20
  4. Step 4: Simplify right side
    47,322.20x = 2,991,108,492.06
  5. Step 5: Solve for x
    x = 2,991,108,492.06/47,322.20
  6. Step 6: Final answer
    x = 63,207.30

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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.