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Finding the Fourth Proportional to 56,074.59, 84,111.74 and 13,953.89

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Solution

The fourth proportional to 56,074.59, 84,111.74 and 13,953.89 is: 20,930.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,074.59 : 84,111.74 = 13,953.89 : x
  2. Step 2: Convert to fraction form
    56,074.59/84,111.74 = 13,953.89/x
  3. Step 3: Cross multiply
    56,074.59x = 84,111.74 × 13,953.89
  4. Step 4: Simplify right side
    56,074.59x = 1,173,685,477.34
  5. Step 5: Solve for x
    x = 1,173,685,477.34/56,074.59
  6. Step 6: Final answer
    x = 20,930.79

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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.