Home / 47,320.20-70,980.30-42,136.20

Finding the Fourth Proportional to 47,320.20, 70,980.30 and 42,136.20

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Solution

The fourth proportional to 47,320.20, 70,980.30 and 42,136.20 is: 63,204.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,320.20 : 70,980.30 = 42,136.20 : x
  2. Step 2: Convert to fraction form
    47,320.20/70,980.30 = 42,136.20/x
  3. Step 3: Cross multiply
    47,320.20x = 70,980.30 × 42,136.20
  4. Step 4: Simplify right side
    47,320.20x = 2,990,840,116.86
  5. Step 5: Solve for x
    x = 2,990,840,116.86/47,320.20
  6. Step 6: Final answer
    x = 63,204.30

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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.