Home / 53,929.40-80,897.70-18,390.20

Finding the Fourth Proportional to 53,929.40, 80,897.70 and 18,390.20

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Solution

The fourth proportional to 53,929.40, 80,897.70 and 18,390.20 is: 27,586.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,929.40 : 80,897.70 = 18,390.20 : x
  2. Step 2: Convert to fraction form
    53,929.40/80,897.70 = 18,390.20/x
  3. Step 3: Cross multiply
    53,929.40x = 80,897.70 × 18,390.20
  4. Step 4: Simplify right side
    53,929.40x = 1,487,724,882.54
  5. Step 5: Solve for x
    x = 1,487,724,882.54/53,929.40
  6. Step 6: Final answer
    x = 27,586.53

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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.