Home / 77,748.12-107,291.10-43,756.60

Finding the Fourth Proportional to 77,748.12, 107,291.10 and 43,756.60

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Solution

The fourth proportional to 77,748.12, 107,291.10 and 43,756.60 is: 60,383.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,748.12 : 107,291.10 = 43,756.60 : x
  2. Step 2: Convert to fraction form
    77,748.12/107,291.10 = 43,756.60/x
  3. Step 3: Cross multiply
    77,748.12x = 107,291.10 × 43,756.60
  4. Step 4: Simplify right side
    77,748.12x = 4,694,693,746.26
  5. Step 5: Solve for x
    x = 4,694,693,746.26/77,748.12
  6. Step 6: Final answer
    x = 60,383.37

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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.