Home / 77,875.22-107,469.38-43,422.08

Finding the Fourth Proportional to 77,875.22, 107,469.38 and 43,422.08

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Solution

The fourth proportional to 77,875.22, 107,469.38 and 43,422.08 is: 59,923.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,875.22 : 107,469.38 = 43,422.08 : x
  2. Step 2: Convert to fraction form
    77,875.22/107,469.38 = 43,422.08/x
  3. Step 3: Cross multiply
    77,875.22x = 107,469.38 × 43,422.08
  4. Step 4: Simplify right side
    77,875.22x = 4,666,543,587.12
  5. Step 5: Solve for x
    x = 4,666,543,587.12/77,875.22
  6. Step 6: Final answer
    x = 59,923.34

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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.