Home / 74,310.47-111,400.09-56,858.21

Finding the Fourth Proportional to 74,310.47, 111,400.09 and 56,858.21

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Solution

The fourth proportional to 74,310.47, 111,400.09 and 56,858.21 is: 85,237.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,310.47 : 111,400.09 = 56,858.21 : x
  2. Step 2: Convert to fraction form
    74,310.47/111,400.09 = 56,858.21/x
  3. Step 3: Cross multiply
    74,310.47x = 111,400.09 × 56,858.21
  4. Step 4: Simplify right side
    74,310.47x = 6,334,009,429.84
  5. Step 5: Solve for x
    x = 6,334,009,429.84/74,310.47
  6. Step 6: Final answer
    x = 85,237.11

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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.