Home / 77,050.39-106,327.12-45,218.61

Finding the Fourth Proportional to 77,050.39, 106,327.12 and 45,218.61

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Solution

The fourth proportional to 77,050.39, 106,327.12 and 45,218.61 is: 62,400.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,050.39 : 106,327.12 = 45,218.61 : x
  2. Step 2: Convert to fraction form
    77,050.39/106,327.12 = 45,218.61/x
  3. Step 3: Cross multiply
    77,050.39x = 106,327.12 × 45,218.61
  4. Step 4: Simplify right side
    77,050.39x = 4,807,964,571.70
  5. Step 5: Solve for x
    x = 4,807,964,571.70/77,050.39
  6. Step 6: Final answer
    x = 62,400.26

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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.