Home / 74,148.10-111,228.22-21,557.52

Finding the Fourth Proportional to 74,148.10, 111,228.22 and 21,557.52

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Solution

The fourth proportional to 74,148.10, 111,228.22 and 21,557.52 is: 32,338.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,148.10 : 111,228.22 = 21,557.52 : x
  2. Step 2: Convert to fraction form
    74,148.10/111,228.22 = 21,557.52/x
  3. Step 3: Cross multiply
    74,148.10x = 111,228.22 × 21,557.52
  4. Step 4: Simplify right side
    74,148.10x = 2,397,804,577.21
  5. Step 5: Solve for x
    x = 2,397,804,577.21/74,148.10
  6. Step 6: Final answer
    x = 32,338.04

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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.