Home / 85,074.84-117,443.52-56,799.36

Finding the Fourth Proportional to 85,074.84, 117,443.52 and 56,799.36

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Solution

The fourth proportional to 85,074.84, 117,443.52 and 56,799.36 is: 78,409.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,074.84 : 117,443.52 = 56,799.36 : x
  2. Step 2: Convert to fraction form
    85,074.84/117,443.52 = 56,799.36/x
  3. Step 3: Cross multiply
    85,074.84x = 117,443.52 × 56,799.36
  4. Step 4: Simplify right side
    85,074.84x = 6,670,716,772.15
  5. Step 5: Solve for x
    x = 6,670,716,772.15/85,074.84
  6. Step 6: Final answer
    x = 78,409.98

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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.