Home / 85,519.67-118,024.29-56,788.56

Finding the Fourth Proportional to 85,519.67, 118,024.29 and 56,788.56

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Solution

The fourth proportional to 85,519.67, 118,024.29 and 56,788.56 is: 78,372.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,519.67 : 118,024.29 = 56,788.56 : x
  2. Step 2: Convert to fraction form
    85,519.67/118,024.29 = 56,788.56/x
  3. Step 3: Cross multiply
    85,519.67x = 118,024.29 × 56,788.56
  4. Step 4: Simplify right side
    85,519.67x = 6,702,429,474.12
  5. Step 5: Solve for x
    x = 6,702,429,474.12/85,519.67
  6. Step 6: Final answer
    x = 78,372.96

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.