Home / 77,748.42-107,291.12-43,292.90

Finding the Fourth Proportional to 77,748.42, 107,291.12 and 43,292.90

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Solution

The fourth proportional to 77,748.42, 107,291.12 and 43,292.90 is: 59,743.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,748.42 : 107,291.12 = 43,292.90 : x
  2. Step 2: Convert to fraction form
    77,748.42/107,291.12 = 43,292.90/x
  3. Step 3: Cross multiply
    77,748.42x = 107,291.12 × 43,292.90
  4. Step 4: Simplify right side
    77,748.42x = 4,644,943,729.05
  5. Step 5: Solve for x
    x = 4,644,943,729.05/77,748.42
  6. Step 6: Final answer
    x = 59,743.26

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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.