Home / 77,840.04-107,378.32-49,149.33

Finding the Fourth Proportional to 77,840.04, 107,378.32 and 49,149.33

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Solution

The fourth proportional to 77,840.04, 107,378.32 and 49,149.33 is: 67,800.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,840.04 : 107,378.32 = 49,149.33 : x
  2. Step 2: Convert to fraction form
    77,840.04/107,378.32 = 49,149.33/x
  3. Step 3: Cross multiply
    77,840.04x = 107,378.32 × 49,149.33
  4. Step 4: Simplify right side
    77,840.04x = 5,277,572,484.53
  5. Step 5: Solve for x
    x = 5,277,572,484.53/77,840.04
  6. Step 6: Final answer
    x = 67,800.23

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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.