Home / 51,029.20-70,420.08-28,673.20

Finding the Fourth Proportional to 51,029.20, 70,420.08 and 28,673.20

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Solution

The fourth proportional to 51,029.20, 70,420.08 and 28,673.20 is: 39,568.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,029.20 : 70,420.08 = 28,673.20 : x
  2. Step 2: Convert to fraction form
    51,029.20/70,420.08 = 28,673.20/x
  3. Step 3: Cross multiply
    51,029.20x = 70,420.08 × 28,673.20
  4. Step 4: Simplify right side
    51,029.20x = 2,019,169,037.86
  5. Step 5: Solve for x
    x = 2,019,169,037.86/51,029.20
  6. Step 6: Final answer
    x = 39,568.89

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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.