Home / 53,684.15-80,535.65-20,407.12

Finding the Fourth Proportional to 53,684.15, 80,535.65 and 20,407.12

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Solution

The fourth proportional to 53,684.15, 80,535.65 and 20,407.12 is: 30,614.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,684.15 : 80,535.65 = 20,407.12 : x
  2. Step 2: Convert to fraction form
    53,684.15/80,535.65 = 20,407.12/x
  3. Step 3: Cross multiply
    53,684.15x = 80,535.65 × 20,407.12
  4. Step 4: Simplify right side
    53,684.15x = 1,643,500,370.45
  5. Step 5: Solve for x
    x = 1,643,500,370.45/53,684.15
  6. Step 6: Final answer
    x = 30,614.26

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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.