Home / 47,865.06-66,109.08-31,921.80

Finding the Fourth Proportional to 47,865.06, 66,109.08 and 31,921.80

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Solution

The fourth proportional to 47,865.06, 66,109.08 and 31,921.80 is: 44,088.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,865.06 : 66,109.08 = 31,921.80 : x
  2. Step 2: Convert to fraction form
    47,865.06/66,109.08 = 31,921.80/x
  3. Step 3: Cross multiply
    47,865.06x = 66,109.08 × 31,921.80
  4. Step 4: Simplify right side
    47,865.06x = 2,110,320,829.94
  5. Step 5: Solve for x
    x = 2,110,320,829.94/47,865.06
  6. Step 6: Final answer
    x = 44,088.96

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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.