Home / 53,179.50-73,386.77-28,980.68

Finding the Fourth Proportional to 53,179.50, 73,386.77 and 28,980.68

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Solution

The fourth proportional to 53,179.50, 73,386.77 and 28,980.68 is: 39,992.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,179.50 : 73,386.77 = 28,980.68 : x
  2. Step 2: Convert to fraction form
    53,179.50/73,386.77 = 28,980.68/x
  3. Step 3: Cross multiply
    53,179.50x = 73,386.77 × 28,980.68
  4. Step 4: Simplify right side
    53,179.50x = 2,126,798,497.60
  5. Step 5: Solve for x
    x = 2,126,798,497.60/53,179.50
  6. Step 6: Final answer
    x = 39,992.83

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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.