Home / 62,830.32-86,625-51,457.92

Finding the Fourth Proportional to 62,830.32, 86,625 and 51,457.92

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Solution

The fourth proportional to 62,830.32, 86,625 and 51,457.92 is: 70,945.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,830.32 : 86,625 = 51,457.92 : x
  2. Step 2: Convert to fraction form
    62,830.32/86,625 = 51,457.92/x
  3. Step 3: Cross multiply
    62,830.32x = 86,625 × 51,457.92
  4. Step 4: Simplify right side
    62,830.32x = 4,457,542,320
  5. Step 5: Solve for x
    x = 4,457,542,320/62,830.32
  6. Step 6: Final answer
    x = 70,945.72

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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.