Home / 53,610.20-73,971-30,948.80

Finding the Fourth Proportional to 53,610.20, 73,971 and 30,948.80

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Solution

The fourth proportional to 53,610.20, 73,971 and 30,948.80 is: 42,702.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,610.20 : 73,971 = 30,948.80 : x
  2. Step 2: Convert to fraction form
    53,610.20/73,971 = 30,948.80/x
  3. Step 3: Cross multiply
    53,610.20x = 73,971 × 30,948.80
  4. Step 4: Simplify right side
    53,610.20x = 2,289,313,684.80
  5. Step 5: Solve for x
    x = 2,289,313,684.80/53,610.20
  6. Step 6: Final answer
    x = 42,702.95

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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.