Home / 53,099.35-79,648.92-13,656.40

Finding the Fourth Proportional to 53,099.35, 79,648.92 and 13,656.40

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Solution

The fourth proportional to 53,099.35, 79,648.92 and 13,656.40 is: 20,484.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,099.35 : 79,648.92 = 13,656.40 : x
  2. Step 2: Convert to fraction form
    53,099.35/79,648.92 = 13,656.40/x
  3. Step 3: Cross multiply
    53,099.35x = 79,648.92 × 13,656.40
  4. Step 4: Simplify right side
    53,099.35x = 1,087,717,311.97
  5. Step 5: Solve for x
    x = 1,087,717,311.97/53,099.35
  6. Step 6: Final answer
    x = 20,484.57

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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.