Home / 55,925.21-77,178.12-31,727.81

Finding the Fourth Proportional to 55,925.21, 77,178.12 and 31,727.81

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Solution

The fourth proportional to 55,925.21, 77,178.12 and 31,727.81 is: 43,785.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,925.21 : 77,178.12 = 31,727.81 : x
  2. Step 2: Convert to fraction form
    55,925.21/77,178.12 = 31,727.81/x
  3. Step 3: Cross multiply
    55,925.21x = 77,178.12 × 31,727.81
  4. Step 4: Simplify right side
    55,925.21x = 2,448,692,801.48
  5. Step 5: Solve for x
    x = 2,448,692,801.48/55,925.21
  6. Step 6: Final answer
    x = 43,785.13

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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.