Home / 56,507.47-84,758.41-20,975.70

Finding the Fourth Proportional to 56,507.47, 84,758.41 and 20,975.70

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Solution

The fourth proportional to 56,507.47, 84,758.41 and 20,975.70 is: 31,462.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,507.47 : 84,758.41 = 20,975.70 : x
  2. Step 2: Convert to fraction form
    56,507.47/84,758.41 = 20,975.70/x
  3. Step 3: Cross multiply
    56,507.47x = 84,758.41 × 20,975.70
  4. Step 4: Simplify right side
    56,507.47x = 1,777,866,928.20
  5. Step 5: Solve for x
    x = 1,777,866,928.20/56,507.47
  6. Step 6: Final answer
    x = 31,462.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.