Home / 48,129.71-72,206.85-18,539.60

Finding the Fourth Proportional to 48,129.71, 72,206.85 and 18,539.60

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Solution

The fourth proportional to 48,129.71, 72,206.85 and 18,539.60 is: 27,814.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,129.71 : 72,206.85 = 18,539.60 : x
  2. Step 2: Convert to fraction form
    48,129.71/72,206.85 = 18,539.60/x
  3. Step 3: Cross multiply
    48,129.71x = 72,206.85 × 18,539.60
  4. Step 4: Simplify right side
    48,129.71x = 1,338,685,755.23
  5. Step 5: Solve for x
    x = 1,338,685,755.23/48,129.71
  6. Step 6: Final answer
    x = 27,814.13

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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.