Home / 85,006.89-117,334.22-56,712.51

Finding the Fourth Proportional to 85,006.89, 117,334.22 and 56,712.51

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Solution

The fourth proportional to 85,006.89, 117,334.22 and 56,712.51 is: 78,279.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,006.89 : 117,334.22 = 56,712.51 : x
  2. Step 2: Convert to fraction form
    85,006.89/117,334.22 = 56,712.51/x
  3. Step 3: Cross multiply
    85,006.89x = 117,334.22 × 56,712.51
  4. Step 4: Simplify right side
    85,006.89x = 6,654,317,841.53
  5. Step 5: Solve for x
    x = 6,654,317,841.53/85,006.89
  6. Step 6: Final answer
    x = 78,279.75

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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.