Home / 53,432.90-80,119.76-21,865.12

Finding the Fourth Proportional to 53,432.90, 80,119.76 and 21,865.12

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Solution

The fourth proportional to 53,432.90, 80,119.76 and 21,865.12 is: 32,785.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,432.90 : 80,119.76 = 21,865.12 : x
  2. Step 2: Convert to fraction form
    53,432.90/80,119.76 = 21,865.12/x
  3. Step 3: Cross multiply
    53,432.90x = 80,119.76 × 21,865.12
  4. Step 4: Simplify right side
    53,432.90x = 1,751,828,166.77
  5. Step 5: Solve for x
    x = 1,751,828,166.77/53,432.90
  6. Step 6: Final answer
    x = 32,785.57

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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.