Home / 53,915.12-80,897.73-20,624.18

Finding the Fourth Proportional to 53,915.12, 80,897.73 and 20,624.18

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Solution

The fourth proportional to 53,915.12, 80,897.73 and 20,624.18 is: 30,945.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,915.12 : 80,897.73 = 20,624.18 : x
  2. Step 2: Convert to fraction form
    53,915.12/80,897.73 = 20,624.18/x
  3. Step 3: Cross multiply
    53,915.12x = 80,897.73 × 20,624.18
  4. Step 4: Simplify right side
    53,915.12x = 1,668,449,345.11
  5. Step 5: Solve for x
    x = 1,668,449,345.11/53,915.12
  6. Step 6: Final answer
    x = 30,945.85

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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.