Home / 55,725.40-76,900.41-30,574.90

Finding the Fourth Proportional to 55,725.40, 76,900.41 and 30,574.90

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Solution

The fourth proportional to 55,725.40, 76,900.41 and 30,574.90 is: 42,193.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,725.40 : 76,900.41 = 30,574.90 : x
  2. Step 2: Convert to fraction form
    55,725.40/76,900.41 = 30,574.90/x
  3. Step 3: Cross multiply
    55,725.40x = 76,900.41 × 30,574.90
  4. Step 4: Simplify right side
    55,725.40x = 2,351,222,345.71
  5. Step 5: Solve for x
    x = 2,351,222,345.71/55,725.40
  6. Step 6: Final answer
    x = 42,193.01

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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.