Home / 55,925.72-77,178.81-31,728.32

Finding the Fourth Proportional to 55,925.72, 77,178.81 and 31,728.32

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Solution

The fourth proportional to 55,925.72, 77,178.81 and 31,728.32 is: 43,785.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,925.72 : 77,178.81 = 31,728.32 : x
  2. Step 2: Convert to fraction form
    55,925.72/77,178.81 = 31,728.32/x
  3. Step 3: Cross multiply
    55,925.72x = 77,178.81 × 31,728.32
  4. Step 4: Simplify right side
    55,925.72x = 2,448,753,436.36
  5. Step 5: Solve for x
    x = 2,448,753,436.36/55,925.72
  6. Step 6: Final answer
    x = 43,785.82

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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.