Home / 52,228.33-78,358.12-20,642.85

Finding the Fourth Proportional to 52,228.33, 78,358.12 and 20,642.85

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Solution

The fourth proportional to 52,228.33, 78,358.12 and 20,642.85 is: 30,970.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,228.33 : 78,358.12 = 20,642.85 : x
  2. Step 2: Convert to fraction form
    52,228.33/78,358.12 = 20,642.85/x
  3. Step 3: Cross multiply
    52,228.33x = 78,358.12 × 20,642.85
  4. Step 4: Simplify right side
    52,228.33x = 1,617,534,865.83
  5. Step 5: Solve for x
    x = 1,617,534,865.83/52,228.33
  6. Step 6: Final answer
    x = 30,970.45

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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.