Home / 53,078.61-79,617.91-13,635.76

Finding the Fourth Proportional to 53,078.61, 79,617.91 and 13,635.76

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Solution

The fourth proportional to 53,078.61, 79,617.91 and 13,635.76 is: 20,453.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,078.61 : 79,617.91 = 13,635.76 : x
  2. Step 2: Convert to fraction form
    53,078.61/79,617.91 = 13,635.76/x
  3. Step 3: Cross multiply
    53,078.61x = 79,617.91 × 13,635.76
  4. Step 4: Simplify right side
    53,078.61x = 1,085,650,712.46
  5. Step 5: Solve for x
    x = 1,085,650,712.46/53,078.61
  6. Step 6: Final answer
    x = 20,453.64

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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.