Home / 55,015.12-75,925.62-31,146.04

Finding the Fourth Proportional to 55,015.12, 75,925.62 and 31,146.04

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Solution

The fourth proportional to 55,015.12, 75,925.62 and 31,146.04 is: 42,984.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,015.12 : 75,925.62 = 31,146.04 : x
  2. Step 2: Convert to fraction form
    55,015.12/75,925.62 = 31,146.04/x
  3. Step 3: Cross multiply
    55,015.12x = 75,925.62 × 31,146.04
  4. Step 4: Simplify right side
    55,015.12x = 2,364,782,397.54
  5. Step 5: Solve for x
    x = 2,364,782,397.54/55,015.12
  6. Step 6: Final answer
    x = 42,984.23

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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.