Home / 53,079.48-79,619.28-13,636.92

Finding the Fourth Proportional to 53,079.48, 79,619.28 and 13,636.92

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Solution

The fourth proportional to 53,079.48, 79,619.28 and 13,636.92 is: 20,455.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,079.48 : 79,619.28 = 13,636.92 : x
  2. Step 2: Convert to fraction form
    53,079.48/79,619.28 = 13,636.92/x
  3. Step 3: Cross multiply
    53,079.48x = 79,619.28 × 13,636.92
  4. Step 4: Simplify right side
    53,079.48x = 1,085,761,751.82
  5. Step 5: Solve for x
    x = 1,085,761,751.82/53,079.48
  6. Step 6: Final answer
    x = 20,455.40

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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.