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Finding the Fourth Proportional to 47,573.50, 65,476.65 and 40,782.88

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Solution

The fourth proportional to 47,573.50, 65,476.65 and 40,782.88 is: 56,130.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,573.50 : 65,476.65 = 40,782.88 : x
  2. Step 2: Convert to fraction form
    47,573.50/65,476.65 = 40,782.88/x
  3. Step 3: Cross multiply
    47,573.50x = 65,476.65 × 40,782.88
  4. Step 4: Simplify right side
    47,573.50x = 2,670,326,359.75
  5. Step 5: Solve for x
    x = 2,670,326,359.75/47,573.50
  6. Step 6: Final answer
    x = 56,130.54

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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.