Home / 47,830.30-66,021.28-42,785.62

Finding the Fourth Proportional to 47,830.30, 66,021.28 and 42,785.62

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Solution

The fourth proportional to 47,830.30, 66,021.28 and 42,785.62 is: 59,057.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,830.30 : 66,021.28 = 42,785.62 : x
  2. Step 2: Convert to fraction form
    47,830.30/66,021.28 = 42,785.62/x
  3. Step 3: Cross multiply
    47,830.30x = 66,021.28 × 42,785.62
  4. Step 4: Simplify right side
    47,830.30x = 2,824,761,125.98
  5. Step 5: Solve for x
    x = 2,824,761,125.98/47,830.30
  6. Step 6: Final answer
    x = 59,057.99

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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.