Home / 66,309.20-99,496.20-31,242.80

Finding the Fourth Proportional to 66,309.20, 99,496.20 and 31,242.80

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Solution

The fourth proportional to 66,309.20, 99,496.20 and 31,242.80 is: 46,879.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,309.20 : 99,496.20 = 31,242.80 : x
  2. Step 2: Convert to fraction form
    66,309.20/99,496.20 = 31,242.80/x
  3. Step 3: Cross multiply
    66,309.20x = 99,496.20 × 31,242.80
  4. Step 4: Simplify right side
    66,309.20x = 3,108,539,877.36
  5. Step 5: Solve for x
    x = 3,108,539,877.36/66,309.20
  6. Step 6: Final answer
    x = 46,879.47

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1.5x scale

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.