Home / 53,434.08-80,147.88-13,990.32

Finding the Fourth Proportional to 53,434.08, 80,147.88 and 13,990.32

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Solution

The fourth proportional to 53,434.08, 80,147.88 and 13,990.32 is: 20,984.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,434.08 : 80,147.88 = 13,990.32 : x
  2. Step 2: Convert to fraction form
    53,434.08/80,147.88 = 13,990.32/x
  3. Step 3: Cross multiply
    53,434.08x = 80,147.88 × 13,990.32
  4. Step 4: Simplify right side
    53,434.08x = 1,121,294,488.52
  5. Step 5: Solve for x
    x = 1,121,294,488.52/53,434.08
  6. Step 6: Final answer
    x = 20,984.63

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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.