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Finding the Fourth Proportional to 77,860.57, 107,447.56 and 42,050.59

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Solution

The fourth proportional to 77,860.57, 107,447.56 and 42,050.59 is: 58,029.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,860.57 : 107,447.56 = 42,050.59 : x
  2. Step 2: Convert to fraction form
    77,860.57/107,447.56 = 42,050.59/x
  3. Step 3: Cross multiply
    77,860.57x = 107,447.56 × 42,050.59
  4. Step 4: Simplify right side
    77,860.57x = 4,518,233,292.06
  5. Step 5: Solve for x
    x = 4,518,233,292.06/77,860.57
  6. Step 6: Final answer
    x = 58,029.80

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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.