Home / 45,551.30-62,890.02-28,578.80

Finding the Fourth Proportional to 45,551.30, 62,890.02 and 28,578.80

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Solution

The fourth proportional to 45,551.30, 62,890.02 and 28,578.80 is: 39,457.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,551.30 : 62,890.02 = 28,578.80 : x
  2. Step 2: Convert to fraction form
    45,551.30/62,890.02 = 28,578.80/x
  3. Step 3: Cross multiply
    45,551.30x = 62,890.02 × 28,578.80
  4. Step 4: Simplify right side
    45,551.30x = 1,797,321,303.58
  5. Step 5: Solve for x
    x = 1,797,321,303.58/45,551.30
  6. Step 6: Final answer
    x = 39,457.08

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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.