Home / 53,520.90-80,281.55-17,981.21

Finding the Fourth Proportional to 53,520.90, 80,281.55 and 17,981.21

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Solution

The fourth proportional to 53,520.90, 80,281.55 and 17,981.21 is: 26,971.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,520.90 : 80,281.55 = 17,981.21 : x
  2. Step 2: Convert to fraction form
    53,520.90/80,281.55 = 17,981.21/x
  3. Step 3: Cross multiply
    53,520.90x = 80,281.55 × 17,981.21
  4. Step 4: Simplify right side
    53,520.90x = 1,443,559,409.68
  5. Step 5: Solve for x
    x = 1,443,559,409.68/53,520.90
  6. Step 6: Final answer
    x = 26,971.88

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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.