Home / 74,633.10-111,949.65-43,140.30

Finding the Fourth Proportional to 74,633.10, 111,949.65 and 43,140.30

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Solution

The fourth proportional to 74,633.10, 111,949.65 and 43,140.30 is: 64,710.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,633.10 : 111,949.65 = 43,140.30 : x
  2. Step 2: Convert to fraction form
    74,633.10/111,949.65 = 43,140.30/x
  3. Step 3: Cross multiply
    74,633.10x = 111,949.65 × 43,140.30
  4. Step 4: Simplify right side
    74,633.10x = 4,829,541,485.90
  5. Step 5: Solve for x
    x = 4,829,541,485.90/74,633.10
  6. Step 6: Final answer
    x = 64,710.45

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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.