Home / 47,640.24-65,713.50-30,666.66

Finding the Fourth Proportional to 47,640.24, 65,713.50 and 30,666.66

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Solution

The fourth proportional to 47,640.24, 65,713.50 and 30,666.66 is: 42,300.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,640.24 : 65,713.50 = 30,666.66 : x
  2. Step 2: Convert to fraction form
    47,640.24/65,713.50 = 30,666.66/x
  3. Step 3: Cross multiply
    47,640.24x = 65,713.50 × 30,666.66
  4. Step 4: Simplify right side
    47,640.24x = 2,015,213,561.91
  5. Step 5: Solve for x
    x = 2,015,213,561.91/47,640.24
  6. Step 6: Final answer
    x = 42,300.66

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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.